Cincinnati Bengals wide receiver Marvin Jones, right, celebrates a touchdown with running back Dan Herron against the Indianapolis Colts in the first half of an NFL preseason football game in Indianapolis, Thursday, Aug. 30, 2012. (AP Photo/John Sommers II)

Philadelphia Eagles cornerback Nnamdi Asomugha looks back as he runs onto the field with teammates for the start of a preseason NFL football game against the New York Jets, Thursday, Aug. 30, 2012, in Philadelphia. (AP Photo/Matt Slocum)

Green Bay Packers wide receiver Jordy Nelson celebrates with fans after catching a touchdown pass during the first half of a preseason NFL football game against the Cleveland Browns Thursday, Aug. 16, 2012, in Green Bay, Wis. (AP Photo/Mike Roemer)

New Orleans Saints quarterback Sean Canfield (4) is sacked by Tennessee Titans defensive end Keyunta Dawson (75) for a four-yard loss in the first quarter of an NFL football preseason game on Thursday, Aug. 30, 2012, in Nashville, Tenn. (AP Photo/Wade Payne)

Atlanta Falcons running back Dimitri Nance (30) gets a shove from teammate Michael Palmer (81) as he is stopped by Jacksonville Jaguars defensive end Aaron Morgan (58) during the first half of an NFL preseason football game, Thursday, Aug. 30, 2012, in Jacksonville, Fla. (AP Photo/Stephen Morton)

August 30, 2012; Philadelphia, PA, USA; Philadelphia Eagles running back Bryce Brown (34) jumps in the air on a run against the New York Jets during the first quarter at Lincoln Financial Field. Mandatory Credit: Dale Zanine-US PRESSWIRE

Cincinnati Bengals linebacker Manny Lawson (99) defends against Atlanta Falcons running back Michael Turner (33) during the first half of an NFL preseason football game, Thursday, Aug. 16, 2012, in Atlanta. (AP Photo/John Bazemore)

Aug 30, 2012; Green Bay, WI, USA; Kansas City Chiefs running back Peyton Hillis (40) is tackled by Green Bay Packers linebacker A.J. Hawk (50) during the first quarter at Lambeau Field. Mandatory Credit: Jeff Hanisch-US PRESSWIRE

Cincinnati Bengals defensive back Terence Newman (23) tackles Atlanta Falcons wide receiver Roddy White (84) after White made a reception during the first half of an NFL preseason football game, Thursday, Aug. 16, 2012, in Atlanta. (AP Photo/John Bazemore)

Aug 30, 2012; Detroit, MI, USA; Buffalo Bills tight end Scott Chandler (84) is tackled by Detroit Lions safety John Wendling (29) during the first quarter of a preseason game at Ford Field. Mandatory Credit: Tim Fuller-US PRESSWIRE

Aug 30, 2012; Detroit, MI, USA; Detroit Lions quarterback Matthew Stafford (9) hands off the ball to running back Mikel Leshoure (25) during the first quarter of a preseason game against the Buffalo Bills at Ford Field. Mandatory Credit: Tim Fuller-US PRESSWIRE

Cincinnati Bengals running back Jourdan Brooks (32) scores a touchdown as Atlanta Falcons linebacker Rico Council defends during the second half of an NFL preseason football game, Thursday, Aug. 16, 2012, in Atlanta. The Bengals won 24-19. (AP Photo/John Bazemore)

Green Bay Packers running back Alex Green celebrates with fans after rushing for a touchdown during the first half of an NFL preseason football game against the Kansas City Chiefs Thursday, Aug. 30, 2012, in Green Bay, Wis. (AP Photo/Morry Gash)

Arizona Cardinals wide receiver LaRon Byrd, center, makes a reception between Denver Broncos defenders David Bruton, left, and Omar Bolden, right, in the second quarter of a preseason NFL football game Thursday, Aug. 30, 2012, in Glendale, Ariz. (AP Photo/Paul Connors)

Cleveland Browns quarterback Colt McCoy (12) congratulates running back Brandon Jackson (29) after Jackson's touchdown run during the second half of a preseason NFL football game against the Green Bay Packers Thursday, Aug. 16, 2012, in Green Bay, Wis. (AP Photo/Morry Gash)

Baltimore Ravens linebacker Ray Lewis and Olympic gold medalist Michael Phelps pose together during training camp. Read more.(Baltimore Ravens)

Dallas Cowboys linebacker Kyle Wilber (51) hits Oakland Raiders quarterback Matt Leinart (7) during the second quarter of an NFL preseason football game in Oakland, Calif., Monday, Aug. 13, 2012. (AP Photo/Tony Avelar)

Arizona Cardinals cornerback Michael Adams, left, and Denver Broncos wide receiver Jason Hill, right, battle for a pass that went incomplete in the second quarter of a preseason NFL football game Thursday, Aug. 30, 2012, in Glendale, Ariz. (AP Photo/Paul Connors)

Seattle Seahawks' Cooper Helfet dives across the goal line to score against the Oakland Raiders in the second half of a preseason NFL football game Thursday, Aug. 30, 2012 in Seattle. (AP Photo/Stephen Brashear)

Dallas Cowboys quarterback Tony Romo (9) passes against the Oakland Raiders during the first quarter of an NFL preseason football game in Oakland, Calif., Monday, Aug. 13, 2012. (AP Photo/Ben Margot)

Aug 30, 2012; Seattle, WA, USA; Seattle Seahawks wide receiver Charly Martin (14) reaches out for extra yards while being tackled by Oakland Raiders defensive back Coye Francies (31) during the 1st half at CenturyLink Field. Mandatory Credit: Steven Bisig-US PRESSWIRE

August 30, 2012; St. Louis, MO, USA; St. Louis Rams full back Ovie Mughelli (30) and offensive guard Robert Turner (59) run onto the field before a game against the Baltimore Ravens at the Edward Jones Dome. The Rams won 31-17. Mandatory Credit: Jeff Curry-US PRESSWIRE

Oakland Raiders safety Mike Mitchell (34) returns an interception as Dallas Cowboys wide receiver Dwayne Harris (17) reaches to tackle during the first half of an NFL preseason football game in Oakland, Calif., Monday, Aug. 13, 2012. (AP Photo/Ben Margot)

Aug 30, 2012; Pittsburgh , PA, USA; Carolina Panthers wide receiver Kealoha Pilares (81) drops a pass in front of Pittsburgh Steelers safety Will Allen (26) during the second half of the game at Heinz Field. The Steelers won the game, 17-16. Mandatory Credit: Jason Bridge-US PRESSWIRE

August 30, 2012; Houston, TX, USA; Houston Texans wide receiver Juaquin Iglesias (19) attempts to catch a pass during the fourth quarter as Minnesota Vikings defensive back Reggie Jones (29) defends at Reliant Stadium. Mandatory Credit: Troy Taormina-US PRESSWIRE

August 30, 2012; Pittsburgh, PA, USA; Pittsburgh Steelers cornerback Terrence Frederick (37) breaks up a two point conversion pass attempt to Carolina Panthers wide receiver Lamont Bryant (18) during the fourth quarter at Heinz Field. Fredrick was called for pass interference on the play. The Pittsburgh Steelers won 17-16. Mandatory Credit: Charles LeClaire-US PRESSWIRE

Oakland Raiders quarterback Terrelle Pryor (6) looks to pass as offensive tackle Joe Barksdale (72) blocks Dallas Cowboys defensive end Kenyon Coleman (99) during the second half of an NFL preseason football game in Oakland, Calif., Monday, Aug. 13, 2012. (AP Photo/Ben Margot)

August 30, 2012; Philadelphia, PA USA; Philadelphia Eagles wide receiver Chad Hall (16) tries to come up with catch against New York Jets defensive back Isaiah Trufant (35) in the 4th quarter at Lincoln Financial Field. The Eagles defeated the Jets, 28-10. Mandatory Credit: Eric Hartline-US PRESSWIRE

Indianapolis Colts quarterback Andrew Luck (12) celebrates after throwing a touchdown pass against the St. Louis Rams in the first half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Aug 30, 2012; Detroit, MI, USA; Detroit Lions wide receiver Maurice Stovall (80) is unable to complete a pass while being guarded by Buffalo Bills safety Da'Norris Searcy (25) and cornerback Leodis McKelvin (21) during the second quarter of a preseason game at Ford Field. Mandatory Credit: Tim Fuller-US PRESSWIRE

Kansas City Chiefs running back Peyton Hillis (40) celebrates a touchdown with wide receiver Steve Breaston (15) during the first half an NFL pre-season football game against the Arizona Cardinals in Kansas City, Mo., Friday, Aug. 10, 2012. (AP Photo/Colin E. Braley)

Aug 30, 2012; Detroit, MN, USA; Buffalo Bills punter Brian Moorman (8) walks to the field prior to the game against the Detroit Lions in a preseason game at Ford Field. Mandatory Credit: Andrew Weber-US Presswire

San Diego Chargers running back Ronnie Brown (30) flips over San Francisco 49ers cornerback Chris Culliver (29) during the first half of an NFL preseason football game in San Francisco, Thursday, Aug. 30, 2012. (AP Photo/Marcio Jose Sanchez)

New York Jets quarterback Tim Tebow passes against the Cincinnati Bengals in the first half of an NFL preseason football game, Friday, Aug. 10, 2012, in Cincinnati. (AP Photo/Tom Uhlman)

New York Jets quarterback Tim Tebow looks downfield in the first half of an NFL preseason football game against the Cincinnati Bengals, Friday, Aug. 10, 2012, in Cincinnati. (AP Photo/Tom Uhlman)

Chicago Bears' Brittan Golden (82) celebrates with teammate Dane Sanzenbacher (18) after Golden returned a blocked punt for a touchdown against the Cleveland Browns in the third quarter of a preseason NFL football game, Thursday, Aug. 30, 2012, in Cleveland. The Bears won 28-20. (AP Photo/Ron Schwane)

Denver Broncos quarterback Peyton Manning (18) gives the thumbs up prior to a NFL preseason football game against the Arizona Cardinals, Thursday, Aug. 30, 2012, in Glendale, Ariz. (AP Photo/Matt York)

Cleveland Browns quarterback Brandon Weeden (3) drops back to pass as Detroit Lions defensive end Willie Young (79) rushes during the first quarter of an NFL preseason football game in Detroit, Friday, Aug. 10, 2012. (AP Photo/Rick Osentoski)

San Francisco 49ers tight end Delanie Walker (46) scores on a touchdown reception past San Diego Chargers defensive back Eric Weddle (32) during the first quarter of an NFL preseason football game in San Francisco, Thursday, Aug. 30, 2012. (AP Photo/Marcio Jose Sanchez)

Kansas City Chiefs quarterback Matt Cassel (7) passes from the pocket during the first half of an NFL preseason football game against the Arizona Cardinals in Kansas City, Mo., Friday, Aug. 10, 2012. (AP Photo/Orlin Wagner)

Indianapolis Colts tight end Dominique Jones scores a touchdown in the second half of an NFL preseason football game against the Cincinnati Bengals in Indianapolis, Thursday, Aug. 30, 2012. The Colts won 20-16. (AP Photo/John Sommers II)

Pittsburgh Steelers quarterback Ben Roethlisberger laughs as he sits on the bench during an NFL preseason football game against the Carolina Panthers in Pittsburgh, Thursday, Aug. 30, 2012. (AP Photo/Gene J. Puskar)

Detroit Lions quarterback Shaun Hill (14) spikes the ball after scoring on a 1-yard run in the first quarter of an NFL preseason football game against the Buffalo Bills as Detroit's Austin Wells (45) looks on Thursday, Aug. 30, 2012, in Detroit. (AP Photo/Duane Burleson)

Miami Dolphins quarterback Ryan Tannehill (17) looks to pass during the second half of an NFL preseason football game against the Tampa Bay Buccaneers, Friday, Aug. 10, 2012, in Miami. (AP Photo/Rhona Wise)

Pittsburgh Steelers wide receiver Emmanuel Sanders (88) makes a catch past Carolina Panthers defensive back Reggie Smith (31) for a touchdown in the first quarter of their NFL preseason football game, Thursday, Aug. 30, 2012, in Pittsburgh. (AP Photo/Don Wright)

San Francisco 49ers running back Brandon Jacobs carries against the Minnesota Vikings during the first quarter of an NFL preseason football game in San Francisco, Friday, Aug. 10, 2012. (AP Photo/Ben Margot)

Indianapolis Colts quarterback Andrew Luck (12) and wide receiver Reggie Wayne wait to be introduced before an NFL preseason football game against the Cincinnati Bengals in Indianapolis, Thursday, Aug. 30, 2012. (AP Photo/AJ Mast)

St. Louis Rams wide receiver Danny Amendola, center, is stopped by Baltimore Ravens safety Omar Brown, left, and free safety Christian Thompson after catching a pass for a 24-yard gain during the second quarter of a preseason NFL football game Thursday, Aug. 30, 2012, in St. Louis. (AP Photo/Seth Perlman)

St. Louis Rams wide receiver Austin Pettis, right, falls into the end zone past Baltimore Ravens safety Omar Brown after catching a 14-yard pass for a touchdown during the first quarter of a preseason NFL football game Thursday, Aug. 30, 2012, in St. Louis. (AP Photo/Tom Gannam)

Jacksonville Jaguars running back Rashad Jennings, center, is stopped after a short gain by Atlanta Falcons defensive end Kroy Biermann (71) and other teammates during the first half of an NFL preseason football game, Thursday, Aug. 30, 2012, in Jacksonville, Fla. (AP Photo/Phelan M. Ebenhack)

Oakland Raiders running back Darren McFadden (20) rushes against Dallas Cowboys defensive back Orlando Scandrick (32) during the first quarter of an NFL preseason football game in Oakland, Calif., Monday, Aug. 13, 2012. (AP Photo/Tony Avelar)

Green Bay Packers quarterback Aaron Rodgers is pressured as he throws against the San Diego Chargers during the first half of an NFL preseason football game Thursday, Aug. 9, 2012, in San Diego. (AP Photo/Lenny Ignelzi)

New York Jets running back Terrance Ganaway, right, scores a touchdown over Philadelphia Eagles safety Phillip Thomas in the first half of a preseason NFL football game, Thursday, Aug. 30, 2012, in Philadelphia. (AP Photo/Matt Rourke)

Denver Broncos quarterback Peyton Manning (18) calls a play from the line of scrimmage behind center J.D. Walton against the Chicago Bears during the first half of an NFL preseason football game in Chicago, Thursday, Aug. 9, 2012. (AP Photo/Nam Y. Huh)

Atlanta Falcons free safety Thomas DeCoud (28) and cornerback Brent Grimes (20) celebrate after their team recovered a fumble against the Jacksonville Jaguars during the first half of an NFL preseason football game on Thursday, Aug. 30, 2012, in Jacksonville, Fla. (AP Photo/Phelan M. Ebenhack)

Oakland Raiders defensive tackle Tommy Kelly (93) sacks Dallas Cowboys quarterback Tony Romo (9) during the first quarter of an NFL preseason football game in Oakland, Calif., Monday, Aug. 13, 2012. (AP Photo/Ben Margot)

Oakland Raiders defensive back Brandon Underwood (28) tackles Dallas Cowboys running back Jamize Olawale (49) during the third quarter of an NFL preseason football game in Oakland, Calif., Monday, Aug. 13, 2012. (AP Photo/Ben Margot)

Aug 29, 2012; Arlington, TX, USA; Miami Dolphins cornerback Nolan Carroll (28) defends a pass against Dallas Cowboys wide receiver Dwayne Harris (17) during the second quarter at Cowboys Stadium. Mandatory Credit: Tim Heitman-US PRESSWIRE

Indianapolis Colts quarterback Andrew Luck (12) celebrates with wide receiver Reggie Wayne (87) after he threw a touchdown pass to wide receiver Austin Collie (17) in the first half of an NFL preseason football game against the St. Louis Rams in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/AJ Mast)

August 29, 2012; Landover, MD, USA; Washington Redskins wide receiver Brandon Banks (16) catches the ball in front of Tampa Bay Buccaneers cornerback James Rogers (28) in the third quarter at FedEx Field. The Redskins won 30-3. Mandatory Credit: Geoff Burke-US PRESSWIRE

August 29, 2012; Landover, MD, USA; Washington Redskins running back Roy Helu Jr. (29) dives into the end zone for a touchdown against theTampa Bay Buccaneers in the third quarter at FedEx Field. The Redskins won 30-3. Mandatory Credit: Geoff Burke-US PRESSWIRE

Kansas City Chiefs running back Peyton Hillis (40) is tackled by Arizona Cardinals linebacker Reggie Walker (56) and defensive end Ronald Tailey (93) during the first half an NFL preseason football game in Kansas City, Mo., Friday, Aug. 10, 2012. (AP Photo/Colin E. Braley)

Washington Redskins quarterback Robert Griffin III throws during the first half of a preseason NFL football game against the Buffalo Bills in Orchard Park, N.Y., Thursday, Aug. 9, 2012. (AP Photo/Bill Wippert)

Denver Broncos quarterback Peyton Manning (18) looks for a receiver against the Chicago Bears during the first half of an NFL preseason football game in Chicago, Thursday, Aug. 9, 2012. (AP Photo/Michael Conroy)

Dallas Cowboys wide receiver Kevin Ogletree (85) misses a reception as Miami Dolphins defensive back Quinten Lawrence (36) defends during the first half of a preseason NFL football game, Wednesday, Aug. 29, 2012, in Arlington, Texas. (AP Photo/LM Otero)

Miami Dolphins running back Reggie Bush (22) is tackled by Tampa Bay Buccaneers defensive tackle Gerald McCoy (93) and defensive end Michael Bennett (71) during the first half of an NFL preseason football game on Friday, Aug. 10, 2012, in Miami. (AP Photo/Wilfredo Lee)

Arizona Cardinals quarterback Kevin Kolb (4) is tackled by Kansas City Chiefs defensive end Ropati Pitoitua (77) during the first half of an NFL preseason football game in Kansas City, Mo., Friday, Aug. 10, 2012. (AP Photo/Ed Zurga)

Dallas Cowboys cornerback Teddy Williams tackles Miami Dolphins wide receiver Legedu Naanee (19) during the first half of a preseason NFL football game, Wednesday, Aug. 29, 2012, in Arlington, Texas. (AP Photo/Tony Gutierrez)

New York Giants running back Andre Brown (35) tries to escape from Jacksonville Jaguars defensive back Courtney Greene (36) during the first half of an NFL preseason football game Friday, Aug. 10, 2012, in Jacksonville, Fla. (AP Photo/Stephen Morton)

August 29, 2012; East Rutherford, NJ, USA; New York Giants wide receiver Hakeem Nicks (88) is brought down by New England Patriots linebacker Niko Koutouvides (90), defensive back Tavon Wilson (27) and linebacker Mike Rivera (47) during the first quarter of a preseason game at MetLife Stadium. Mandatory Credit: Brad Penner-US PRESSWIRE

August 29, 2012; East Rutherford, NJ, USA; New York Giants defensive end Craig Marshall (70) and defensive end Matt Broha (54) sack New England Patriots quarterback Ryan Mallett (15) during the first half of a preseason game at MetLife Stadium.Mandatory Credit: Tim Farrell/THE STAR-LEDGER via US PRESSWIRE

Cincinnati Bengals wide receiver Armon Binns (85) is tackled by New York Jets strong safety Antonio Allen (39) during the first half of an NFL preseason football game, Friday, Aug. 10, 2012, in Cincinnati. (AP Photo/David Kohl)

San Francisco 49ers wide receiver Brett Swain (18) catches a touchdown pass next to Minnesota Vikings defensive back Chris Carr (25) during the first quarter of an NFL preseason football game in San Francisco, Friday, Aug. 10, 2012. (AP Photo/Paul Sakuma)

New York Giants wide receiver Ramses Barden (13) runs away from New England Patriots' Ras-I Dowling (21) during the first half of a preseason NFL football game, Wednesday, Aug. 29, 2012, in East Rutherford, N.J. (AP Photo/Kathy Willens)

New England Patriots quarterback Tom Brady (12) leads his team out onto the field before their first NFL preseason football game against the New Orleans Saints in Foxborough, Mass., Thursday, Aug. 9, 2012. (AP Photo/Stephan Savoia)

Denver Broncos linebacker Von Miller (58) intercepts a pass in front Chicago Bears wide receiver Brandon Marshall (15) during the first half of an NFL preseason football game in Chicago, Thursday, Aug. 9, 2012. (AP Photo/Nam Y. Huh)

Dallas Cowboys tackle Jeff Adams (70) and linebacker Victor Butler (57) tackle Miami Dolphins running back Daniel Thomas (33) during the first half of a preseason NFL football game, Wednesday, Aug. 29, 2012, in Arlington, Texas. (AP Photo/LM Otero)

Washington Redskins' Pierre Garcon (88) celebrates his touchdown during the first half of a preseason NFL football game against the Buffalo Bills in Orchard Park, N.Y., Thursday, Aug. 9, 2012. (AP Photo/Gary Wiepert)

Tampa Bay Buccaneers running back Mossis Madu (32) tries to tackle Washington Redskins wide receiver Brandon Banks (16) on a punt-return during the first half of an NFL preseason football game on Wednesday, Aug. 29, 2012, in Landover, Md. (AP Photo/Richard Lipski)

Buffalo Bills quarterback Ryan Fitzpatrick (14) is pressured by Washington Redskins linebacker Brian Orakpo (98) during the first quarter of a preseason NFL football game in Orchard Park, N.Y., Thursday, Aug. 9, 2012. (AP Photo/David Duprey)

New York Jets wide receiver Santonio Holmes (10) and Carolina Panthers' Haruki Nakamura fight for control of the ball during the first half of a preseason NFL football game, Sunday, Aug. 26, 2012, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Baltimore Ravens defensive end Pernell McPhee, right, and defensive end Paul Kruger (99) hit Atlanta Falcons running back Michael Turner (33) during the first half of an NFL preseason football game, Thursday, Aug. 9, 2012, in Atlanta. (AP Photo/John Bazemore)

Carolina Panthers' DeAngelo Williams (34) is tackled by New York Jets linebacker Bart Scott (57) during the first quarter of a preseason NFL football game, Sunday, Aug. 26, 2012, in East Rutherford, N.J. (AP Photo/Julio Cortez)

Carolina Panthers wide receiver Louis Murphy (83) celebrates after catching a pass for a touchdown during the first half of a preseason NFL football game against the New York Jets, Sunday, Aug. 26, 2012, in East Rutherford, N.J. (AP Photo/Julio Cortez)

San Diego Chargers quarterback Philip Rivers (17) throws during the first half of an NFL preseason football game against the Green Bay Packers, Thursday, Aug. 9, 2012, in San Diego. (AP Photo/Matt York)

New York Jets running back Shonn Greene (23) cuts back to avoid Carolina Panthers' Luke Kuechly (59) during the first half of a preseason NFL football game, Sunday, Aug. 26, 2012, in East Rutherford, N.J. (AP Photo/Julio Cortez)

Philadelphia Eagles and Pittsburgh Steelers players gather at midfield to pray at the end of an NFL preseason football game, Thursday, Aug. 9, 2012, in Philadelphia. The Eagles won 24-23. (AP Photo/Michael Perez)

Philadelphia Eagles coach Andy Reid, left, and Pittsburgh Steelers quarterback Ben Roethlisberger talk at midfield before an NFL preseason football game, Thursday, Aug. 9, 2012, in Philadelphia. (AP Photo/Michael Perez)

Buffalo Bills running back Johnny White (20) carries the ball under pressure from Washington Redskins linebacker Markus White (55) during the second half of a preseason NFL football game in Orchard Park, N.Y., Thursday, Aug. 9, 2012. (AP Photo/Bill Wippert)

New York Jets quarterback Mark Sanchez (6) is sacked by Carolina Panthers linebacker Thomas Davis (58) during the first half of a preseason NFL football game, Sunday, Aug. 26, 2012, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

New Orleans Saints quarterback Drew Brees throws a pass during a game against the New England Patriots at Gillette Stadium on August 9, 2012 in Foxboro, Massachusetts. (Aaron M. Sprecher/NFL)

Denver Broncos quarterback Peyton Manning (18) passes against the San Francisco 49ers during the first quarter of an NFL preseason football game in Denver, Sunday, Aug. 26, 2012. (AP Photo/Jack Dempsey)

Baltimore Ravens tight end Billy Bajema (86) is tackled by Atlanta Falcons defensive back Shann Schillinger (39) during the first half of an NFL preseason football game, Thursday, Aug. 9, 2012, in Atlanta. (AP Photo/John Bazemore)

San Francisco 49ers wide receiver Michael Crabtree (15) catches a pass in front of Denver Broncos defensive back Tracy Porter (22) during the first quarter of an NFL preseason football game in Denver, Sunday, Aug. 26, 2012. (AP Photo/Jack Dempsey)

Atlanta Falcons wide receiver Roddy White, right, makes a catch against Baltimore Ravens defensive back Cary Williams (29) during the first half of an NFL preseason football game Thursday, Aug. 9, 2012, in Atlanta. (AP Photo/John Bazemore)

Chicago Bears safety Major Wright (21) celebrates after intercepting a throw during the first half of an NFL preseason football game against the Denver Broncos in Chicago, Thursday, Aug. 9, 2012. (AP Photo/Nam Y. Huh)

Philadelphia Eagles wide receiver Mardy Gilyard (19) catches a pass for a touchdown in front of Pittsburgh Steelers cornerback Curtis Brown (31) during the second half of an NFL preseason football game Thursday, Aug. 9, 2012, in Philadelphia. The Eagles won 24-23. (AP Photo/Mel Evans)

Denver Broncos wide receiver Eric Decker (87) catches a touchdown pass from quarterback Peyton Manning during the first quarter of an NFL preseason football game against the San Francisco 49ers in Denver, Sunday, Aug. 26, 2012. (AP Photo/Joe Mahoney)

New Orleans Saints quarterback Drew Brees (9) points at New England Patriots quarterback Tom Brady (12) after the Patriots defeated the Saints 7-6 in an NFL preseason football game in Foxborough, Mass., Thursday, Aug. 9, 2012. (AP Photo/Michael Dwyer)

Denver Broncos wide receiver Eric Decker (87) celebrates with fans after catching a touchdown pass from quarterback Peyton Manning during the first quarter of an NFL preseason football game against the San Francisco 49ers in Denver, Sunday, Aug. 26, 2012. (AP Photo/Jack Dempsey)

Denver Broncos running back Knowshon Moreno (27) eludes a tackle by Chicago Bears cornerback Isaiah Frey (31) during the first half of an NFL preseason football game in Chicago, Thursday, Aug. 9, 2012. (AP Photo/Charles Rex Arbogast)

Washington Redskins running back Alfred Morris (46) celebrates with quarterback Robert Griffin III (10) after Morris' touchdown during the first half of an NFL preseason football game against the Indianapolis Colts on Saturday, Aug. 25, 2012, in Landover, Md. (AP Photo/Nick Wass)

Minnesota Vikings wide receiver Jerome Simpson (81) vaults Buffalo Bills defensive back Jairus Byrd (31) after a long gain on a pass from Christian Ponder in the first half of an NFL preseason football game Friday, Aug. 17, 2012 in Minneapolis. (AP Photo/Jim Mone )

New England Patriots wide receiver Brandon Lloyd runs the ball during a game against the New Orleans Saints at Gillette Stadium on August 9, 2012 in Foxboro, Massachusetts. (Aaron M. Sprecher/NFL)

Pittsburgh Steelers wide receiver Antonio Brown (84), left, flips into the end zone over Indianapolis Colts defensive back Antoine Bethea (41) for a touchdown in the first quarter of an NFL football preseason game on Sunday, Aug. 19, 2012 in Pittsburgh. (AP Photo/Don Wright)

Washington Redskins quarterback Robert Griffin III celebrates after a Redskins touchdown during the first half of an NFL preseason football game against the Indianapolis Colts on Saturday, Aug. 25, 2012, in Landover, Md. (AP Photo/Nick Wass)

Carolina Panthers quarterback Cam Newton (1) scrambles as teammates Ryan Kalil (67) and Geoff Hangartner (63) block against Houston Texans' Tim Jamison (96) during the first half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Mike McCarn)

New Orleans Saints running back Travaris Cadet (39) gains extra yardage as he leaves New England Patriots wide receiver Matthew Slater (18) behind during the first half of an NFL preseason football game in Foxborough, Mass. Thursday, Aug. 9, 2012. (AP Photo/Elise Amendola)

New England Patriots linebacker Brandon Spikes (55) tackles Philadelphia Eagles running back LeSean McCoy (25) during the second quarter of an NFL preseason football game in Foxborough, Mass., Monday, Aug. 20, 2012.(AP Photo/Steven Senne)

Indianapolis Colts wide receiver Donnie Avery, left, celebrates with T.Y. Hilton after Hilton's touchdown catch during the first half of an NFL preseason football game against the Washington Redskins on Saturday, Aug. 25, 2012, in Landover, Md. (AP Photo/Nick Wass)

Pittsburgh Steelers defensive back Troy Polamalu (43), right, pushes Indianapolis Colts running back Donald Brown (31) out of bounds after a long run in the first quarter of the NFL football preseason game on Sunday, Aug. 19, 2012 in Pittsburgh. (AP Photo/Don Wright)

Carolina Panthers' Kealoha Pilares (81) jumps to avoid Houston Texans' Brice McCain (21) during the first half of an NFL preseason football game in Charlotte, N.C., Saturday, Aug. 11, 2012. (AP Photo/Mike McCarn)

Seattle Seahawks wide receiver Braylon Edwards (17) catches a pass while covered by Kansas City Chiefs defensive back Jalil Brown, back, during the first half of an NFL preseason football game in Kansas City, Mo., Friday, Aug. 24, 2012. (AP Photo/Charlie Riedel)

Green Bay Packers wide receiver Jordy Nelson catches a touchdown pass over Cleveland Browns defensive back Joe Haden (23) during the first half of a preseason NFL football game Thursday, Aug. 16, 2012, in Green Bay, Wis. (AP Photo/Morry Gash)

Cincinnati Bengals running back Brian Leonard (40) loses the ball on a run under pressure from Atlanta Falcons defensive back William Moore (25) and defensive back Brent Grimes (20) during the first half of an NFL preseason football game, Thursday, Aug. 16, 2012, in Atlanta. (AP Photo/John Bazemore)

Seattle Seahawks wide receiver Charly Martin (14) celebrates a touchdown during the first half of an NFL preseason football game against the Kansas City Chiefs in Kansas City, Mo., Friday, Aug. 24, 2012. (AP Photo/Ed Zurga)

Tennessee Titans' Darius Reynaud dives in for a touchdown past Seattle Seahawks' Jeron Johnson, left, after returning a punt for 85 yards in the second half of an NFL football preseason game, Saturday, Aug. 11, 2012, in Seattle. (AP Photo/Stephen Brashear)

Cincinnati Bengals tight end Donald Lee (86) jumps over Atlanta Falcons linebacker Stephen Nicholas (54) and defensive back Brent Grimes (20) during the first half of an NFL preseason football game, Thursday, Aug. 16, 2012, in Atlanta. (AP Photo/John Amis)

Seattle Seahawks wide receiver Braylon Edwards (17) dives for the ball while covered by Kansas City Chiefs defensive back Jalil Brown (30) during the second half of an NFL preseason football game in Kansas City, Mo., Friday, Aug. 24, 2012. Officials ruled an incomplete pass on the play. (AP Photo/Ed Zurga)

Seattle Seahawks wide receiver Braylon Edwards, left, pulls in a touchdown pass over Tennessee Titans defensive back Tommie Campbell (37) during the second half of an NFL football preseason game, Saturday, Aug. 11, 2012, in Seattle. (AP Photo/Rick Bowmer)

Tennessee Titans' Alterraun Verner (20) tackles Seattle Seahawks' Robert Turbin (22) during the first half of an NFL football preseason game, Saturday, Aug. 11, 2012, in Seattle. (AP Photo/Stephen Brashear)

Indianapolis Colts running back Donald Brown (31) races to the end zone for a touchdown after catching a pass from quarterback Andrew Luck in the first half of an NFL preseason football game against the St. Louis Rams in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/AJ Mast)

San Diego Chargers kicker Nick Novak (9) and punter Mike Scifres (5) celebrate Novak's game-winning field goal against the Minnesota Vikings in the second half of an NFL preseason football game on Friday, Aug. 24, 2012, in Minneapolis. The Chargers won 12-10. (AP Photo/Genevieve Ross)

Cleveland Browns' Trevin Wade (26) breaks up a pass intended for Green Bay Packers' Dale Moss (13) during the second half of a preseason NFL football game Thursday, Aug. 16, 2012, in Green Bay, Wis. (AP Photo/Jeffrey Phelps)

Minnesota Vikings running back Jerome Felton (42) scores a touchdown as Buffalo Bills linebacker Nick Barnett (50) looks on in the first half of an NFL preseason football game, Friday, Aug. 17, 2012, in Minneapolis. (AP Photo/Genevieve Ross)

St. Louis Rams running back Steven Jackson (39) is tackled by Indianapolis Colts cornerback Justin King (21) in the first half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Minnesota Vikings wide receiver Percy Harvin (12) makes a catch against the San Diego Chargers in the first half of an NFL preseason football game on Friday, Aug. 24, 2012, in Minneapolis. (AP Photo/Genevieve Ross)

Miami Dolphins' Marcus Thigpen (34) is hit by Carolina Panthers' Haruki Nakamura (43) as Panthers' Sherrod Martin (23) comes in during the first quarter of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 17, 2012. (AP Photo/Bob Leverone)

St. Louis Rams wide receiver Brian Quick (83) is tackled by Indianapolis Colts defensive back DJ Johnson (43) after making a first down in the first half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Indianapolis Colts quarterback Andrew Luck (12) hands the ball off to running back Donald Brown (31) in the first half of an NFL preseason football game against the St. Louis Rams in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Tampa Bay Buccaneers' Doug Martin scores a touchdown on their first drive against the New England Patriots during their NFL preseason football game in Tampa, Fla., Friday, Aug. 24, 2012. (AP Photo/Dave Martin)

Detroit Lions defensive back Chris Houston (23) breaks up a pass intended for Baltimore Ravens wide receiver LaQuan Williams (15) during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

Indianapolis Colts quarterback Drew Stanton (5) is tackled by St. Louis Rams safety Rodney McLeod (38) and linebacker Justin Cole after a six-yard gain in the second half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. The gain set up a Colts touchdown on the next play. (AP Photo/AJ Mast)

Tampa Bay Buccaneers' Mark Barron intercepts a pass as New England Patriots' Rob Gronkowski watches in the first half against the New England Patriots during their NFL preseason football game in Tampa, Fla., Friday, Aug. 24, 2012. Barron scored a touchdown on the play. (AP Photo/Brian Blanco)

Detroit Lions wide receiver Calvin Johnson (81) scores a touchdown as Baltimore Ravens defensive back Jimmy Smith (22) runs past during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

Indianapolis Colts quarterback Andrew Luck (12) talks St. Louis Rams quarterback Sam Bradford (8) after their NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. The Colts won 38-3. (AP Photo/Michael Conroy)

New England Patriots tight end Rob Gronkowski, left, rolls in for a touchdown in front of Tampa Bay Buccaneers safety Ahmad Black during the third quarter of an NFL preseason football game Friday, Aug. 24, 2012, in Tampa, Fla. (AP Photo/Brian Blanco)

Atlanta Falcons wide receiver Tim Toone (17) catches a pass for a touchdown during the second half of an NFL preseason football game against the Miami Dolphins, Friday, Aug. 24, 2012, in Miami. The Falcons won 23-6. (AP Photo/Alan Diaz)

Buffalo Bills wide receiver Steve Johnson (13) is tackled by Minnesota Vikings defensive back Chris Cook (20) in the first half of a preseason football game Friday, Aug. 17, 2012 in Minneapolis. (AP Photo/Andy King)

Cleveland Browns wide receiver Josh Gordon (86) catches a pass over Philadelphia Eagles defensive back Nnamdi Asomugha during the first quarter of a preseason NFL football game Friday, Aug. 24, 2012, in Cleveland. (AP Photo/Scott R. Galvin)

Miami Dolphins' Sean Smith (24) intercepts a pass intended for Carolina Panthers' Steve Smith (89) during the first quarter of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 17, 2012. Dolphins' Smith was called for pass interference on the play and the interception was overturned. (AP Photo/Nell Redmond)

Carolina Panthers' DeAngelo Williams (34) stretches the ball over the goal line for a touchdown as Miami Dolphins' Reshad Jones (20) defends during the first quarter of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 17, 2012. (AP Photo/Chuck Burton)

Philadelphia Eagles quarterback Nick Foles throws during the second quarter against the Cleveland Browns in a preseason NFL football game Friday, Aug. 24, 2012, in Cleveland. (AP Photo/Scott R. Galvin)

Philadelphia Eagles running back Bryce Brown (34) runs the ball past Cleveland Browns defensive back James Dockery (31) during the third quarter of a preseason NFL football game Friday, Aug. 24, 2012, in Cleveland. (AP Photo/Scott R. Galvin)

Baltimore Ravens wide receiver Tandon Doss (17) is stopped by Detroit Lions defensive back Ricardo Silva (39) and running back Stephfon Green (43) during the first half of an NFL preseason football game in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

August 17, 2012; New Orleans, LA, USA; New Orleans Saints wide receiver Marques Colston (12) stiff arms away Jacksonville Jaguars safety Dwight Lowery (25) during the first half of a preseason game at the Mercedes-Benz Superdome. Mandatory Credit: Derick E. Hingle-US PRESSWIRE

Philadelphia Eagles running back Bryce Brown (34) reaches as he recovers a fumble in the third quarter of an NFL preseason football game against the Cleveland Browns on Friday, Aug. 24, 2012, in Cleveland. The Eagles won 27-10. (AP Photo/Mark Duncan)

New York Giants defensive back Dante Hughes blocks a punt by Chicago Bears' Ryan Quigley during the first half of an NFL preseason football game Friday, Aug. 24, 2012, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Buffalo Bills defensive tackle Marcell Dareus (99) tries to bring down Minnesota Vikings quarterback Christian Ponder (7) in the first half of an NFL preseason football game Friday, Aug. 17, 2012 in Minneapolis. (AP Photo/Genevieve Ross)

Arizona Cardinals defensive back William Gay (23) stops Tennessee Titans wide receiver Nate Washington (85) in the second quarter of an NFL football preseason game on Thursday, Aug. 23, 2012, in Nashville, Tenn. (AP Photo/Wade Payne)

Jacksonville Jaguars wide receiver Justin Blackmon (14) scores a touchdown in the first half of a preseason NFL football game against the New Orleans Saints in New Orleans, Friday, Aug. 17, 2012. (AP Photo/Jonathan Bachman)

Aug 23, 2012; Nashville, TN, USA; Tennessee Titans tight end Jared Cook (89) catches a pass against the Arizona Cardinals during the first half at LP Field. Mandatory credit: Don McPeak-US PRESSWIRE

Carolina Panthers' Mike Tolbert (35) breaks the tackle of Miami Dolphins' Nolan Carroll (28) during the second quarter of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 17, 2012. (AP Photo/Bob Leverone)

Baltimore Ravens wide receiver LaQuan Williams, left, holds onto a ball for a touchdown in front of Jacksonville Jaguars cornerback Antonio Dennard in the second half of an NFL preseason football game in Baltimore, Thursday, Aug. 23, 2012. (AP Photo/Nick Wass)

Detroit Lions wide receiver Titus Young (16) leaps into the end zone for a touchdown during the first half of an NFL preseason football game against Baltimore Ravens in Baltimore, Friday, Aug. 17, 2012. (AP Photo/Patrick Semansky)

Oakland Raiders' Rod Streater (80) gives Arizona Cardinals' Jamell Fleming a stiff arm as he tries to gain a few extra yards after making a catch during the first half in a preseason NFL football game, Friday, Aug. 17, 2012, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Green Bay Packers quarterback Aaron Rodgers (12) scores a touchdown on a 12-yard run, in front ofCincinnati Bengals cornerback Nate Clements during the first half of an NFL preseason football game, Thursday, Aug. 23, 2012, in Cincinnati. (AP Photo/John Grieshop)

Aug 23, 2012; Cincinnati, OH, USA; Cincinnati Bengals defensive end Michael Johnson (93) attempts to block a pass by the Green Bay Packers quarterback Aaron Rodgers (12) during the first half at Paul Brown Stadium. Mandatory Credit: Frank Victores-US PRESSWIRE

Arizona Cardinals' Justin Bethel (31) leaps over Oakland Raiders' Lonyae Miller and into the end zone for a touchdown after blocking a punt against the Oakland Raiders during the first half in a preseason NFL football game Friday, Aug. 17, 2012, in Glendale, Ariz. (AP Photo/Ross D. Franklin)

Tennessee Titans running back Chris Johnson heads for the end zone on a first-quarter touchdown against the Tampa Bay Buccaneers during an NFL preseason football game Friday, Aug. 17, 2012, in Tampa, Fla. (AP Photo/Brian Blanco)

Carolina Panthers' Jonathan Stewart (28) leaps over teammates and the goal line for a touchdown against the Miami Dolphins during the first quarter of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 17, 2012. (AP Photo/Bob Leverone)

Green Bay Packers running back Cedric Benson (32) is tackled by Cincinnati Bengals defensive end Michael Johnson (93) and defensive tackle Geno Atkins (97) during the first half of an NFL preseason football game, Thursday, Aug. 23, 2012, in Cincinnati. (AP Photo/John Grieshop)

Tennessee Titans wide receiver Kendall Wright (13) dives into the end zone for a touchdown against the Arizona Cardinals in the first quarter of an NFL football preseason game against the Arizona Cardinals, Thursday, Aug. 23, 2012, in Nashville, Tenn. (AP Photo/Wade Payne)

New York Giants wide receiver Victor Cruz is tackled by New York Jets defensive back Antonio Cromartie during the first half of a preseason NFL football game, Saturday, Aug. 18, 2012, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

St. Louis Rams tight end Lance Kendricks, right, pushes aside Kansas City Chiefs defensive back Kendrick Lewis after catching a pass and running it in for a touchdown in the first quarter of a preseason NFL football game on Saturday, Aug. 18, 2012, in St. Louis. (AP Photo/Seth Perlman)

Green Bay Packers defensive back Tramon Williams (38) breaks up a pass intended for Cincinnati Bengals wide receiver A.J. Green (18) during the first half of an NFL football game, Thursday, Aug. 23, 2012, in Cincinnati. (AP Photo/David Kohl)

New York Giants defensive end Jason Pierre-Paul (90) sacks New York Jets quarterback Mark Sanchez (6) during the first half of a preseason NFL football game on Saturday, Aug. 18, 2012, in East Rutherford, N.J. (AP Photo/Rich Schultz)

Aug 23, 2012; Cincinnati, OH, USA; Cincinnati Bengals wide receiver Armon Binns (85) reaches for a pass during the first half against the Green Bay Packers at Paul Brown Stadium. Mandatory Credit: Frank Victores-US PRESSWIRE

Aug 23, 2012; Cincinnati, OH, USA; Green Bay Packers defensive back Jarrett Bush (24) attempts to defend Cincinnati Bengals wide receiver Armon Binns (85) as he attempts to make a one handed catch during the pre-season game at Paul Brown Stadium. Mandatory Credit: Rob Leifheit-US PRESSWIRE

St. Louis Rams wide receiver Danny Amendola, left, yells at Kansas City Chiefs defensive back Javier Arenas after catching an eight-yard touchdown pass during the first quarter of a preseason NFL football game on Saturday, Aug. 18, 2012, in St. Louis. (AP Photo/Seth Perlman)

New York Giants linebacker Spencer Paysinger (49) tackles New York Jets quarterback Tim Tebow (15) during the second half of a preseason NFL football game on Saturday, Aug. 18, 2012, in East Rutherford, N.J. (AP Photo/Rich Schultz)

New England Patriots defensive back Nate Ebner (43) is tackled by Philadelphia Eagles wide receiver DeSean Jackson (10) after he made an interception during a preseason NFL football game in Foxborough, Mass. Monday, Aug. 20, 2012. (AP Photo/Elise Amendola)

San Francisco 49ers' Kendall Hunter, center, is held up by Houston Texans Danieal Manning (38) and Brice McCain, left, in the first quarter an NFL preseason football game Saturday, Aug. 18, 2012, in Houston. (AP Photo/Dave Einsel)

New England Patriots defensive end Jake Bequette (66) chases Philadelphia Eagles quarterback Nick Foles (9) during the second quarter of an NFL preseason football game in Foxborough, Mass., Monday, Aug. 20, 2012.(AP Photo/Steven Senne)

Carolina Panthers' Jimmy Clausen (7) scrambles as Miami Dolphins' Isaako Aaitui defends during the fourth quarter of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 17, 2012. The Panthers won 23-17. (AP Photo/Bob Leverone)

New England Patriots defensive back Marquice Cole upends Philadelphia Eagles running back Bryce Brown, top, during the third quarter of an NFL preseason football game in Foxborough, Mass., Monday, Aug. 20, 2012.(AP Photo/Steven Senne)

Chicago Bears running back Michael Bush (29) celebrates with quarterback Jay Cutler (6) after Bush scored on a one-yard run against the Washington Redskins in the first half of a NFL preseason football game in Chicago, Saturday, Aug. 18, 2012. (AP Photo/Nam Y. Huh)

Aug 18, 2012; Denver, CO, USA; Seattle Seahawks linebacker K.J. Wright (50) returns an interception past Denver Broncos quarterback Peyton Manning (18) in the first quarter against the Seattle Seahawks at Sports Authority Field. Mandatory Credit: Byron Hetzler-US PRESSWIRE

Philadelphia Eagles linebacker Ryan Rau (47) hangs onto New England Patriots wide receiver Jeremy Ebert (80) during the third quarter of an NFL preseason football game in Foxborough, Mass., Monday, Aug. 20, 2012.(AP Photo/Steven Senne)

Kansas City Chiefs running back Peyton Hillis, top, dives into the end zone for a one-yard touchdown run during the second quarter of a preseason NFL football game against the St. Louis Rams, Saturday, Aug. 18, 2012, in St. Louis. (AP Photo/Seth Perlman)

Philadelphia Eagles running back Bryce Brown, shoves away New England Patriots defensive back Ras-I Dowling (21) during the third quarter of an NFL preseason football game in Foxborough, Mass., Monday, Aug. 20, 2012.(AP Photo/Steven Senne)

Philadelphia Eagles tight end Clay Harbor (82) scrambles to the end zone for a touchdown against the New England Patriots during the third quarter of an NFL preseason football game in Foxborough, Mass., Monday, Aug. 20, 2012.(AP Photo/Steven Senne)

New York Giants running back D.J. Ware (28) tries to break the tackle of New York Jets defensive back Yeremiah Bell (37) during the first half of an preseason NFL football game on Saturday, Aug. 18, 2012, in East Rutherford, N.J. (AP Photo/Rich Schultz)

San Diego Chargers quarterback Philip Rivers is sacked by Dallas Cowboys linebacker Victor Butler during the first quarter of a NFL preseason football game Saturday, Aug. 18, 2012 in San Diego. (AP Photo/Chris Park)

St. Louis Rams quarterback Kellen Clemens, right, is hit by Kansas City Chiefs defensive back Tysyn Hartman after scrambling for a 22-yard gain during the second quarter of a preseason NFL football game on Saturday, Aug. 18, 2012, in St. Louis. (AP Photo/Tom Gannam)

Aug 18, 2012; Chicago, IL, USA; Chicago Bears wide receiver Brandon Marshall (15) is unable to catch a pass while defended by Washington Redskins cornerback Josh Wilson (26) during the second quarter at Soldier Field. Mandatory Credit: Dennis Wierzbicki-US PRESSWIRE

Philadelphia Eagles defensive back Brandon Hughes (27) breaks up a pass to New England Patriots wide receiver Donte' Stallworth, right, during the third quarter of an NFL preseason football game in Foxborough, Mass., Monday, Aug. 20, 2012.(AP Photo/Steven Senne)

New England Patriots tight end Alex Silvestro, left, celebrates his second quarter touchdown with teammate Donte Stallworth (19) against the Philadelphia Eagles during an NFL preseason football game in Foxborough, Mass., Monday, Aug. 20, 2012.(AP Photo/Elise Amendola)

New York Jets quarterback Tim Tebow is sacked for an eight-yard loss by New York Giants defensive back Will Hill during the second half of a preseason NFL football game between the New York Jets and the New York Giants Saturday, Aug. 18, 2012, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Aug 18, 2012; St. Louis, MO, USA; Kansas City Chiefs tight end Kevin Boss (80) attempts to break between St. Louis Rams defensive back Rodney McLeod (38) and Rams linebacker Justin Cole (52) during the first half at the Edward Jones Dome. Mandatory Credit: Photo by Scott Rovak-US PRESSWIRE

Aug 20, 2012; Foxborough, MA, USA; Philadelphia Eagles running back LeSean McCoy (25) scores a touchdown against the New England Patriots during the first half at Gillette Stadium. Mandatory Credit: Mark L. Baer-US PRESSWIRE

St. Louis Rams running back Isaiah Pead, left, dives into the end zone for a one-yard touchdown run as Kansas City Chiefs defensive back Jalil Brown and safety Abram Elam (32) defend during the third quarter of a preseason NFL football game on Saturday, Aug. 18, 2012, in St. Louis. (AP Photo/Tom Gannam)

New England Patriots linebackers Brandon Spikes (55) and Bobby Carpenter, top, stop Philadelphia Eagles running back LeSean McCoy, left, during the first quarter of an NFL preseason football game in Foxborough, Mass., Monday, Aug. 20, 2012.(AP Photo/Charles Krupa)

August 18, 2012; St. Louis, MO, USA; Kansas City Chiefs defensive end Glenn Dorsey (72) sprays water on his face before a game against the St. Louis Rams at the Edward Jones Dome. Mandatory Credit: Jeff Curry-US PRESSWIRE

August 18, 2012; East Rutherford, NJ, USA; New York Jets tight end Dustin Keller (81) tries to avoid being tackled by New York Giants safety Will Hill (38) during the second quarter of a preseason game at MetLife Stadium. Mandatory Credit: Brad Penner-US PRESSWIRE

Aug. 18, 2011; East Rutherford, NJ, USA; New York Giants wide receiver Victor Cruz (80) is tackled by New York Jets defensive back Yeremiah Bell (37) during the first half at MetLife Stadium. Mandatory Credit: Debby Wong-US PRESSWIRE

August 18, 2012; Houston, TX, USA; Houston Texans wide receiver Andre Johnson (80) makes a receptionduring the second quarter against the 49ers at Reliant Stadium. Mandatory Credit: Troy Taormina-US PRESSWIRE

Aug. 18, 2011; East Rutherford, NJ, USA; New York Jets wide receiver Patrick Turner (88) is tackled by New York Giants linebacker Chase Blackburn (93) during the first half at MetLife Stadium. Mandatory Credit: Debby Wong-US PRESSWIRE

Aug 18, 2012; Houston, TX, USA; Houston Texans wide receiver Andre Johnson (80) catches a pass against the San Francisco 49ers in the second quarter at Reliant Stadium. Mandatory Credit: Brett Davis-US PRESSWIRE