San Francisco 49ers' Bruce Ellington (3) dives past Houston Texans' Brandon Harris (26) for a touchdown during the second quarter of an NFL football preseason game Thursday, Aug. 28, 2014, in Houston. (AP Photo/David J. Phillip)

New York Giants' Adrien Robinson, center, fumbles the ball after being tackled by New England Patriots' Nate Ebner, right, and Jonas Gray during the second half of an NFL preseason football game, Thursday, Aug. 28, 2014, in East Rutherford, N.J. (AP Photo/John Minchillo)

Tampa Bay Buccaneers wide receiver Solomon Patton (86) dives past Washington Redskins outside linebacker Adam Hayward (55) and cornerback Richard Crawford (20) to score on a 25-yard touchdown reception during the third quarter of an NFL preseason football game Thursday, Aug. 28, 2014, in Tampa, Fla. (AP Photo/Brian Blanco)

San Francisco 49ers' Kassim Osgood (14) makes a catch as he is hit by Houston Texans' Andre Hal (38) during the second quarter of an NFL football preseason game Thursday, Aug. 28, 2014, in Houston. (AP Photo/David J. Phillip)

Denver Broncos running back Kapri Bibbs (35) fights his way against Dallas Cowboys' Ahmad Dixon (36), Keith Smith (43) and Ryan Smith (33) into the end zone for a touchdown in the second half of a NFL preseason football game, Thursday, Aug. 28. 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Baltimore Ravens wide receiver Jeremy Butler (17) carries against New Orleans Saints defensive back Brian Dixon (44) and defensive back Pierre Warren (42) in the first half of an NFL preseason football game in New Orleans, Thursday, Aug. 28, 2014. (AP Photo/Rogelio Solis)

New England Patriots' Aaron Dobson, right, catches a touchdown pass while New York Giants' Trumaine McBride tries to defend during the first half of an NFL preseason football game Thursday, Aug. 28, 2014, in East Rutherford, N.J. (AP Photo/John Minchillo)

Jacksonville Jaguars wide receiver Chad Bumphis (15) is run out of bounds after a reception by Atlanta Falcons linebacker Jacques Smith (45) during the second half of an NFL preseason football game in Jacksonville, Fla., Thursday, Aug. 28, 2014. (AP Photo/Phelan M. Ebenhack)

Baltimore Ravens wide receiver Deonte Thompson pulls in a touchdown reception against the New Orleans Saints during the first half of an NFL preseason football game in New Orleans, Thursday, Aug. 28, 2014. (AP Photo/Bill Haber)

Tampa Bay Buccaneers defensive back Keith Lewis (41) intercepts a pass intended for Washington Redskins wide receiver Aldrick Robinson (15) during the second quarter of an NFL preseason football game Thursday, Aug. 28, 2014, in Tampa, Fla. (AP Photo/Brian Blanco)

Atlanta Falcons running back Devonta Freeman (33) gains yardage before he is tackled by Jacksonville Jaguars defensive end Red Bryant (79) and free safety Josh Evans (26) during the first half of an NFL preseason football game in Jacksonville, Fla., Thursday, Aug. 28, 2014. (AP Photo/Phelan M. Ebenhack)

Green Bay Packers' Sean Richardson (28) and Jumal Rolle (20) try to stop Kansas City Chiefs' Albert Wilson (8) during the first half of an NFL football preseason game Thursday, Aug. 28, 2014, in Green Bay, Wis. (AP Photo/Mike Roemer)

Detroit Lions running back Theo Riddick (41) is tripped up by Buffalo Bills cornerback Ross Cockrell (29) during the first half of a preseason NFL football game, Thursday, Aug. 28, 2014, in Orchard Park, N.Y. (AP Photo/Gary Wiepert)

Washington Redskins wide receiver Ryan Grant (14) pulls in a 2-yard touchdown pass in front of Tampa Bay Buccaneers cornerback Kip Edwards during the second quarter of an NFL preseason football game Thursday, Aug. 28, 2014, in Tampa, Fla. (AP Photo/Steve Nesius)

Kansas City Chiefs' DeMarcus Van Dyke breaks up a pass intended for Green Bay Packers' Kevin Dorsey (6) during the first half of an NFL football preseason game Thursday, Aug. 28, 2014, in Green Bay, Wis. (AP Photo/Mike Roemer)

New York Jets running back Chris Ivory (33) is upended by the Indianapolis Colts in the first quarter of an NFL football game, Thursday, Aug. 7, 2014, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

New England Patriots quarterback Ryan Mallett winds up to throw as Washington Redskins defensive end Jarvis Jenkins closes in during the first half of an NFL football preseason game in Landover, Md., Thursday, Aug. 7, 2014. (AP Photo/Richard Lipski)

San Francisco 49ers quarterback Colin Kaepernick (7) throws to a receiver as he is pressured in the first half of an NFL preseason football game against the Baltimore Ravens, Thursday, Aug. 7, 2014, in Baltimore. (AP Photo/Nick Wass)

In this picture made with a slow shutter speed, Baltimore Ravens quarterback Joe Flacco, center, runs past teammates and cheerleaders after being introduced before an NFL preseason football game against the San Francisco 49ers, Thursday, Aug. 7, 2014, in Baltimore. (AP Photo/Patrick Semansky)

Cincinnati Bengals' Dre Kirkpatrick (27) tackles Kansas City Chiefs' Albert Wilson (8) on a kickoff return in the first half of an NFL preseason football game Thursday, Aug. 7, 2014, in Kansas City, Mo. (AP Photo/Ed Zurga)

Washington Redskins wide receiver Aldrick Robinson breaks free from New England Patriots strong safety Duron Harmon (30) and scores a touchdown during the first half of an NFL football preseason game in Landover, Md., Thursday, Aug. 7, 2014. (AP Photo/Alex Brandon)

San Francisco 49ers tight end Vance McDonald, center, is tackled by Baltimore Ravens defensive back Chykie Brown, left, and inside linebacker C.J. Mosley in the first half of an NFL preseason football game, Thursday, Aug. 7, 2014, in Baltimore. (AP Photo/Gail Burton)

Kansas City Chiefs' De'Anthony Thomas runs to the end zone for touchdown on a kickoff return in the first half of an NFL preseason football game against the Cincinnati Bengals on Thursday, Aug. 7, 2014, in Kansas City, Mo. (AP Photo/Colin E. Braley)

Cincinnati Bengals wide receiver Brandon Tate (19) makes a touchdown reception against Kansas City Chiefs cornerback Ron Parker (38) in the first half of an NFL preseason football game Thursday, Aug. 7, 2014, in Kansas City, Mo. (AP Photo/Ed Zurga)

Seattle Seahawks quarterback Russell Wilson (3) is pushed out of bounds by Denver Broncos outside linebacker Nate Irving (56) during the first half of an NFL preseason football game, Thursday, Aug. 7, 2014, in Denver. (AP Photo/Joe Mahoney)

Denver Broncos quarterback Brock Osweiler (17) avoids a hit during the second half of an NFL preseason football game against the Seattle Seahawks, Thursday, Aug. 7, 2014, in Denver. (AP Photo/Joe Mahoney)

Miami Dolphins wide receiver Brandon Gibson (10) runs into the end zone against Atlanta Falcons strong safety William Moore (25) during the first half of an NFL preseason football game, Friday, Aug. 8, 2014, in Atlanta. (AP Photo/John Bazemore)

Buffalo Bills' Chris Hogan (15) slips the tackle of Carolina Panthers' Colin Jones (42) during the first half of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 8, 2014. (AP Photo/Bob Leverone)

Minnesota Vikings running back Jerick McKinnon (31) stiff-arms Oakland Raiders defensive back Chimdi Chekwa (35) in the first half during a exhibition NFL football game in Minneapolis, Friday, Aug. 8, 2014. (AP Photo/Jim Mone)

Atlanta Falcons defensive back Tay Glover-Wright (43) breaks up a pass intended for Miami Dolphins wide receiver Matt Hazel (83) during the second half of an NFL preseason football game, Friday, Aug. 8, 2014, in Atlanta. (AP Photo/David Goldman)

Oakland Raiders tight end Mychal Rivera (81) cannot hang onto a pass as Minnesota Vikings cornerback Shaun Prater (27) defends in the first half of a preseason NFL football game in Minneapolis, Friday, Aug. 8, 2014. (AP Photo/Ann Heisenfelt)

Tampa Bay Buccaneers running back Bobby Rainey, center, is tackled by Jacksonville Jaguars linebacker Nate Stupar, left, and outside linebacker Telvin Smith, right, during the first half of an NFL preseason football game in Jacksonville, Fla., Friday, Aug. 8, 2014. (AP Photo/Stephen B. Morton)

Chicago Bears tight end Zach Miller (86) celebrates a touchdown with wide receiver Brandon Marshall (15) in the first half of an NFL preseason football game against the Philadelphia Eagles on Friday, Aug. 8, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)

Carolina Panthers' Kelvin Benjamin, front, catches a touchdown pass as Buffalo Bills' Stephon Gilmore, back, defends during the first half of a preseason NFL football game in Charlotte, N.C., Friday, Aug. 8, 2014. (AP Photo/Mike McCarn)

Detroit Lions running back Joique Bell (35) breaks the tackle of Cleveland Browns cornerback Jordan Poyer (33) in the first half of a preseason NFL football game at Ford Field in Detroit, Saturday, Aug. 9, 2014. (AP Photo/Rick Osentoski)

New York Giants defensive end Jason Pierre-Paul (90) pressures Pittsburgh Steelers quarterback Bruce Gradkowski (5) on the throw in the first quarter of a preseason NFL football game, Saturday, Aug. 9, 2014, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Cleveland Browns quarterback Johnny Manziel (2) breaks the tackle of Detroit Lions outside linebacker Kyle Van Noy (95) in the first half of a preseason NFL football game at Ford Field in Detroit, Saturday, Aug. 9, 2014. (AP Photo/Rick Osentoski)

Tennessee Titans running back Shonn Greene (23) flips the ball over his shoulder after scoring a touchdown on a 13-yard run as Green Bay Packers cornerback Tramon Williams (38) watches in the first quarter of a preseason NFL football game Saturday, Aug. 9, 2014, in Nashville, Tenn. (AP Photo/Mark Zaleski)

Detroit Lions running back George Winn (38) is upended by Cleveland Browns defensive back Aaron Berry (38) in the first half of a preseason NFL football game at Ford Field in Detroit, Saturday, Aug. 9, 2014. (AP Photo/Rick Osentoski)

Cleveland Browns quarterback Johnny Manziel (2) escapes a diving Detroit Lions outside linebacker Kyle Van Noy (95) in the second half of a preseason NFL football game at Ford Field in Detroit, Saturday, Aug. 9, 2014. (AP Photo/Duane Burleson)

Tennessee Titans running back Bishop Sankey (20) is brought down by Green Bay Packers defenders Jamari Lattimore (57), Jarrett Bush (24) and Davon House (31) in the third quarter of a preseason NFL football game Saturday, Aug. 9, 2014, in Nashville, Tenn. (AP Photo/Mark Zaleski)

New York Giants wide receiver Corey Washington (6) makes a catch for a touchdown against Pittsburgh Steelers defensive back Isaiah Green (39) in the fourth quarter of a preseason NFL football game, Saturday, Aug. 9, 2014, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Green Bay Packers linebacker Jay Elliott, right, intercepts a pass against the Tennessee Titans in the fourth quarter of a preseason NFL football game Saturday, Aug. 9, 2014, in Nashville, Tenn. Packers linebacker Carl Bradford, left, looks on. (AP Photo/Mark Zaleski)

Detroit Lions wide receiver Corey Fuller (10) catches a 21 yard touchdown pass against Cleveland Browns defensive back T.J. Heath (41) to tie the game at 12-12 during the fourth quarter of a preseason NFL football game against the Detroit Lions at Ford Field Saturday, Aug. 9, 2014, in Detroit. The Lions defeated the Browns 13-12. (AP Photo/Duane Burleson)

Philadelphia Eagles outside linebacker Connor Barwin (98) tries to tackle New England Patriots quarterback Tom Brady (12) in the first quarter of an NFL football game Friday, Aug. 15, 2014, in Foxborough, Mass. (AP Photo/Elise Amendola)

New Orleans Saints wide receiver Brandin Cooks (10) pulls in a pass over Tennessee Titans cornerback Coty Sensabaugh (24) in the first half of an NFL football game in New Orleans, Friday, Aug. 15, 2014. (AP Photo/Rogelio Solis)

Tennessee Titans wide receiver Justin Hunter (15) celebrates his touchdown reception in front of New Orleans Saints cornerback Corey White (24) in the first half of a NFL preseason football game in New Orleans, Friday, Aug. 15, 2014. (AP Photo/Bill Haber)

New Orleans Saints tight end Jimmy Graham (80) pulls in a touchdown reception in front of Tennessee Titans inside linebacker Avery Williamson (54) and free safety George Wilson (21) in the first half of a NFL preseason football game in New Orleans, Friday, Aug. 15, 2014. (AP Photo/Rogelio Solis)

Philadelphia Eagles free safety Earl Wolff (28) knocks down a pass by New England Patriots quarterback Jimmy Garoppolo (10) in the first half of an NFL preseason football game Friday, Aug. 15, 2014, in Foxborough, Mass. (AP Photo/Charles Krupa)

Tennessee Titans running back Dexter McCluster (22) carries as New Orleans Saints middle linebacker Curtis Lofton (50) tries to tackle in the first half of a NFL preseason football game in New Orleans, Friday, Aug. 15, 2014. (AP Photo/Bill Haber)

New Orleans Saints wide receiver Brandin Cooks (10) tries in vain to pull in a long pass in the second half of a NFL preseason football game against the Tennessee Titans in New Orleans, Friday, Aug. 15, 2014. (AP Photo/Bill Haber)

Philadelphia Eagles rookie running back Henry Josey (34) dives in for a touchdown during an NFL football game against the New England Patriots at Gillette Stadium on Friday August 15, 2014 in in Foxborough, Massachusetts. New England won 42-35. (Aaron M. Sprecher/NFL)

Oakland Raiders outside linebacker Khalil Mack (52) tackles Detroit Lions quarterback Kellen Moore (17) during the second half of an NFL preseason football game in Oakland, Calif., Friday, Aug. 15, 2014. (AP Photo/Marcio Jose Sanchez)

Green Bay Packers running back Eddie Lacy, top, is upended by St. Louis Rams cornerback Brandon McGee after running for an 18-yard gain during the first quarter of an NFL preseason football game Saturday, Aug. 16, 2014, in St. Louis. (AP Photo/Scott Kane)

St. Louis Rams tight end Lance Kendricks, left, lands in the end zone after catching an 11-yard touchdown pass as Green Bay Packers cornerback Micah Hyde defends during the second quarter of a preseason NFL football game Saturday, Aug. 16, 2014, in St. Louis. (AP Photo/Scott Kane)

St. Louis Rams quarterback Austin Davis, left, is sacked for an 8-yard loss by Green Bay Packers linebacker Jayrone Elliott during the fourth quarter of an NFL preseason football game Saturday, Aug. 16, 2014, in St. Louis. The Packers won 21-7. (AP Photo/Tom Gannam)

Dallas Cowboys quarterback Tony Romo (9) tries to hold on to Baltimore Ravens outside linebacker Courtney Upshaw, left, as Upshaw picks up a fumble for a touchdown during the first half of an NFL preseason football game Saturday, Aug. 16, 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Dallas Cowboys wide receiver Dez Bryant (88) makes a touchdown reception during the first half of an NFL preseason football game against the Baltimore Ravens, Saturday, Aug. 16, 2014, in Arlington, Texas. (AP Photo/Matt Strasen)

Cincinnati Bengals tight end Jermaine Gresham (84) catches a pass against New York Jets inside linebacker David Harris (52) in the first half of an NFL preseason football game, Saturday, Aug. 16, 2014, in Cincinnati. (AP Photo/Tom Uhlman)

Houston Texans' DeAndre Hopkins (10) catches a pass in front of Atlanta Falcons' Robert Alford (23) during the first quarter of an NFL preseason football game Saturday, Aug. 16, 2014, in Houston. (AP Photo/David J. Phillip)

Arizona Cardinals wide receiver Ted Ginn (19) tries to break a tackle by Minnesota Vikings' Rhett Ellison during the first half of an NFL preseason football game, Saturday, Aug. 16, 2014, in Minneapolis. (AP Photo/Ann Heisenfelt)

Baltimore Ravens wide receiver Torrey Smith (82) makes a touchdown reception against Dallas Cowboys cornerback Terrance Mitchell (30) during the first half of an NFL preseason football game Saturday, Aug. 16, 2014, in Arlington, Texas. (AP Photo/Brandon Wade)

Dallas Cowboys wide receiver Dez Bryant (88) makes a catch against Baltimore Ravens cornerback Jimmy Smith (22) during the first half of an NFL preseason football game Saturday, Aug. 16, 2014, in Arlington, Texas. (AP Photo/Matt Strasen)

New York Jets tight end Jace Amaro (88) is tripped up by Cincinnati Bengals cornerback Chris Lewis-Harris in the second half of an NFL preseason football game, Saturday, Aug. 16, 2014, in Cincinnati. (AP Photo/Tony Tribble)

Arizona Cardinals wide receiver Larry Fitzgerald, right, catches a pass in front of Minnesota Vikings cornerback Marcus Sherels, left, during the first half of an NFL preseason football game, Saturday, Aug. 16, 2014, in Minneapolis. (AP Photo/Ann Heisenfelt)

Denver Broncos quarterback Brock Osweiler (17) passes as San Francisco 49ers defensive end Cornellius Carradine (95) applies pressure during the second quarter of an NFL preseason football game in Santa Clara, Calif., Sunday, Aug. 17, 2014. (AP Photo/Ben Margot)

Denver Broncos tight end Jacob Tamme (84) reaches for the end zone during the NFL preseason game between the Denver Broncos and the San Francisco 49ers on Sunday, Aug. 17, 2014 at the Levi's Stadium in Santa Clara, Calif. (Ric Tapia/NFL)

Carolina Panthers' Fozzy Whittaker (43) dives into the end zone for a touchdown against the Kansas City Chiefs during the second half of a preseason NFL football game in Charlotte, N.C., Sunday, Aug. 17, 2014. (AP Photo/Bob Leverone)

Washington Redskins defensive back Da'Mon Cromartie-Smith (32) and cornerback Richard Crawford (20) defend as Cleveland Browns tight end Emmanuel Ogbuehi, right, catches a touchdown pass at the end of the second half of an NFL preseason football game Monday, Aug. 18, 2014, in Landover, Md. (AP Photo/Evan Vucci)

Cleveland Browns wide receiver Josh Gordon (12) fumbles the ball as he is hit by Washington Redskins cornerback Tracy Porter (22) during the first half of an NFL preseason football game Monday, Aug. 18, 2014, in Landover, Md. Washington recovered the ball. (AP Photo/Evan Vucci)

Cleveland Browns quarterback Johnny Manziel (2) looks to pass under pressure from Washington Redskins nose tackle Barry Cofield (96) during the first half of an NFL preseason football game Monday, Aug. 18, 2014, in Landover, Md. (AP Photo/Evan Vucci)

Washington Redskins outside linebacker Ryan Kerrigan (91) sacks Cleveland Browns quarterback Johnny Manziel (2) during the first half of an NFL preseason football game Monday, Aug. 18, 2014, in Landover, Md. (AP Photo/Richard Lipski)

Pittsburgh Steelers head coach Mike Tomlin walks out of the visitors tunnel before an NFL preseason football game against the Philadelphia Eagles, Thursday, Aug. 21, 2014, in Philadelphia. (AP Photo/Matt Rourke)

In this image made with a slow shutter speed, Pittsburgh Steelers' Ben Roethlisberger rushes during the second half of an NFL preseason football game against the Philadelphia Eagles, Thursday, Aug. 21, 2014, in Philadelphia. (AP Photo/Matt Rourke)

Philadelphia Eagles' LeSean McCoy (35) scores a touchdown past Pittsburgh Steelers' Cortez Allen (28) during the first half of an NFL preseason football game, Thursday, Aug. 21, 2014, in Philadelphia. (AP Photo/Matt Rourke)

New York Jets free safety Antonio Allen (39) breaks up a pass intended for New York Giants wide receiver Rueben Randle (82) in the first quarter of a preseason NFL football game, Friday, Aug. 22, 2014, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Detroit Lions quarterback Matthew Stafford (9) celebrates Reggie Bush's 86-yard touchdown run against the Jacksonville Jaguars in the first half of a preseason NFL football game at Ford Field in Detroit, Friday, Aug. 22, 2014. (AP Photo/Rick Osentoski)

New York Jets tight end Jace Amaro (88) reacts after catching a touchdown pass against New York Giants inside linebacker Jameel McClain (53) in the second quarter of a preseason NFL football game, Friday, Aug. 22, 2014, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Green Bay Packers running back Eddie Lacy, center, leaps into the crowd after rushing for a touchdown against the Oakland Raiders during the first half of an NFL preseason football game Friday, Aug. 22, 2014, in Green Bay, Wis. (AP Photo/Mike Roemer)

New York Jets running back Chris Ivory (33) is tackled by New York Giants defensive end Mathias Kiwanuka (94) and inside linebacker Jameel McClain (53) in the second quarter of a preseason NFL football game, Friday, Aug. 22, 2014, in East Rutherford, N.J. (AP Photo/Julio Cortez)

Detroit Lions defensive tackle Ndamukong Suh (90) is introduced before a preseason NFL football game against the Jacksonville Jaguars at Ford Field in Detroit, Friday, Aug. 22, 2014. (AP Photo/Duane Burleson)

Oakland Raiders tight end Mychal Rivera (81) is tackled by Green Bay Packers cornerback Tramon Williams (38) after catching a pass during the first half of an NFL preseason football game Friday, Aug. 22, 2014, in Green Bay, Wis. (AP Photo/Mike Roemer)

Detroit Lions running back George Winn (38) fights for yardage as Jacksonville Jaguars outside linebacker J.T. Thomas (52) makes the tackle in the first half of a preseason NFL football game at Ford Field in Detroit, Friday, Aug. 22, 2014. (AP Photo/Duane Burleson)

Green Bay Packers' Andrew Quarless catches a touchdown pass in front of Oakland Raiders' Charles Woodson (24)during the first half of an NFL preseason football game Friday, Aug. 22, 2014, in Green Bay, Wis. (AP Photo/Morry Gash)

New York Giants fullback Henry Hynoski (45) reaches out with the ball for the pylon and a touchdown as he is tackled by New York Jets free safety Jaiquawn Jarrett (37) in the third quarter of a preseason NFL football game, Friday, Aug. 22, 2014, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Detroit Lions running back Reggie Bush (21) runs against the Jacksonville Jaguars in the first half of a preseason NFL football game at Ford Field in Detroit, Friday, Aug. 22, 2014. (AP Photo/Duane Burleson)

New York Giants tight end Daniel Fells (85) congratulates fullback Henry Hynoski (45) in front of New York Jets inside linebacker Demario Davis (56) after Hynoski scored a touchdown in the third quarter of a preseason NFL football game, Friday, Aug. 22, 2014, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

New York Jets wide receiver Eric Decker (87) celebrates with offensive guard Brian Winters (67) after catching a pass for a touchdown against the New York Giants in the third quarter of a preseason NFL football game, Friday, Aug. 22, 2014, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Seattle Seahawks running back Marshawn Lynch (24) breaks a tackle during the preseason NFL game between the Chicago Bears and the Seattle Seahawks on Friday, Aug. 22, 2014 at CenturyLink Field in Seattle. (Ric Tapia/NFL)

Seattle Seahawks wide receiver Percy Harvin (11) runs during the preseason NFL game between the Chicago Bears and the Seattle Seahawks on Friday, Aug. 22, 2014 at CenturyLink Field in Seattle. (Ric Tapia/NFL)

Seattle Seahawks' Earl Thomas, left, returns a punt as Chicago Bears punter Pat O'Donnell makes a touchdown-saving tackle in the first half of an preseason NFL football game, Friday, Aug. 22, 2014, in Seattle. (AP Photo/Stephen Brashear)

Chicago Bears' Danny McCray (29) knocks down Seattle Seahawks' Jermaine Kearse in the first half of a preseason NFL football game, Friday, Aug. 22, 2014, in Seattle. (AP Photo/Stephen Brashear)

Oakland Raiders quarterback Matt Schaub (8) fumbles as he is hit by Green Bay Packers' Nick Perry during the first half of an NFL preseason football game Friday, Aug. 22, 2014, in Green Bay, Wis. The Packers recovered the fumble. (AP Photo/Tom Lynn)

Oakland Raiders wide receiver James Jones (89) catches a pass as Green Bay Packers cornerback Tramon Williams (38) defends during the first half of an NFL preseason football game Friday, Aug. 22, 2014, in Green Bay, Wis. (AP Photo/Morry Gash)

New England Patriots running back James White (28) looks for running room against Carolina Panthers free safety Charles Godfrey (30) in the first half of an NFL preseason football game Friday, Aug. 22, 2014, in Foxborough, Mass. (AP Photo/Charles Krupa)

Detroit Lions running back Reggie Bush (21) runs against the Jacksonville Jaguars in the first half of a preseason NFL football game at Ford Field in Detroit, Friday, Aug. 22, 2014. (AP Photo/Duane Burleson)

New York Jets tight end Jace Amaro (88) is tackled by New York Giants strong safety Antrel Rolle (26) in the first quarter of a preseason NFL football game, Friday, Aug. 22, 2014, in East Rutherford, N.J. (AP Photo/Julio Cortez)

New York Jets wide receiver Jeremy Kerley (11) makes a catch against New York Giants strong safety Nat Berhe (34) in the second quarter of a preseason NFL football game, Friday, Aug. 22, 2014, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Tampa Bay Buccaneers running back Doug Martin (22) celebrates after scoring a touchdown during the first half of a preseason NFL football game against the Buffalo Bills Saturday, Aug. 23, 2014, in Orchard Park, N.Y. (AP Photo/Gary Wiepert)

Tampa Bay Buccaneers running back Doug Martin (22) dives for a touchdown during the first half of a preseason NFL football game against the Buffalo Bills Saturday, Aug. 23, 2014, in Orchard Park, N.Y. (AP Photo/Gary Wiepert)

Tampa Bay Buccaneers wide receiver Mike Evans (13) catches a pass for a touchdown in front of Buffalo Bills cornerback Ron Brooks (33) during the first half of a preseason NFL football game Saturday, Aug. 23, 2014, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Atlanta Falcons wide receiver Harry Douglas (83) is hit by Tennessee Titans' Bernard Pollard (31) Michael Griffin (33) and Zach Brown (55) during the first half of an NFL preseason football game, Saturday, Aug. 23, 2014, in Atlanta. (AP Photo/John Bazemore)

Miami Dolphins cornerback Cortland Finnegan (24) pulls the shirt of Dallas Cowboys wide receiver Dwayne Harris (17) during the first half of an NFL preseason football game, Saturday, Aug. 23, 2014 in Miami Gardens, Fla. (AP Photo/J Pat Carter)

Miami Dolphins running back Knowshon Moreno (28) runs with the ball ahead of Dallas Cowboys outside linebacker Anthony Hitchens (59) during the first half of an NFL preseason football game, Saturday, Aug. 23, 2014 in Miami Gardens, Fla. (AP Photo/Lynne Sladky)

Baltimore Ravens running back Bernard Pierce, left, tries to break away from Washington Redskins outside linebacker Brian Orakpo in the first half of an NFL preseason football game, Saturday, Aug. 23, 2014, in Baltimore. (AP Photo/Nick Wass)

Cleveland Browns quarterback Johnny Manziel (2) dives into the end zone for a touchdown against the St. Louis Rams in the third quarter of a preseason NFL football game Saturday, Aug. 23, 2014, in Cleveland. (AP Photo/David Richard)

Denver Broncos running back Ronnie Hillman (23) is tackled by Houston Texans inside linebacker Brian Cushing (56) and Keith Browner during the first half of an NFL preseason football game, Saturday, Aug. 23, 2014, in Denver. (AP Photo/Joe Mahoney)

New Orleans Saints running back Mark Ingram, left, breaks the tackle of Indianapolis Colts inside linebacker D'Qwell Jackson during the first half of an NFL preseason football game in Indianapolis, Saturday, Aug. 23, 2014. (AP Photo/AJ Mast)

Washington Redskins wide receiver Santana Moss, center, scores a touchdown between Baltimore Ravens defenders Darian Stewart, left, John Simon, bottom right, and Terrence Brooks in the second half of an NFL preseason football game, Saturday, Aug. 23, 2014, in Baltimore. (AP Photo/Nick Wass)

Minnesota Vikings tight end Allen Reisner (87) spikes the ball after catching a touchdown pass in front of Kansas City Chiefs defensive back Malcolm Bronson during the second half of an NFL preseason football game in Kansas City, Mo., Saturday, Aug. 23, 2014. (AP Photo/Charlie Riedel)

Baltimore Ravens wide receiver Steve Smith throws the ball into the stands after scoring a touchdown in the first half of an NFL preseason football game against the Washington Redskins, Saturday, Aug. 23, 2014, in Baltimore. (AP Photo/Nick Wass)

Houston Texans running back Alfred Blue (44) leaps over Denver Broncos defenders as Broncos outside linebacker Nate Irving (56) looks to make the hit during the first half of an NFL preseason football game, Saturday, Aug. 23, 2014, in Denver. (AP Photo/Joe Mahoney)

San Francisco 49ers quarterback Colin Kaepernick (7) is hit by San Diego Chargers defensive end Corey Liuget during the NFL preseason game against the San Diego Chargers and the San Francisco 49ers on Sunday, Aug. 24, 2014 at the Levi's Stadium in Santa Clara, Calif. (Ric Tapia/NFL)

San Diego Chargers tight end Antonio Gates (85) catches a touchdown pass in a 21-7 preseason loss against the San Francisco 49ers on Sunday, Aug. 24, at Levi's Stadium in Santa Clara, Calif. (Ric Tapia/NFL)