Atlanta Falcons fullback Jason Snelling (44) is stopped by Dallas Cowboys cornerback Orlando Scandrick (32) during the first half of an NFL football game, Sunday, Nov. 4, 2012, in Atlanta. (AP Photo/David Tulis)

Atlanta Falcons quarterback Matt Ryan (2) scrambles as Dallas Cowboys nose tackle Josh Brent (92) gives chase during the first half of an NFL football game Sunday, Nov. 4, 2012, in Atlanta. (AP Photo/Rich Addicks)

Chicago Bears running back Matt Forte (22) is stopped by Tennessee Titans defenders Jordan Babineaux (26) and Colin McCarthy (52) in the first quarter of an NFL football game on Sunday, Nov. 4, 2012, in Nashville, Tenn. (AP Photo/Joe Howell)

Houston Texans defensive end J.J. Watt (99) gets a hold on Buffalo Bills running back Fred Jackson (22) in the first quarter of an NFL football game Sunday, Nov. 4, 2012, in Houston. (AP Photo/Eric Gay)

Miami Dolphins wide receiver Brian Hartline, right, tries to break the tackle of Indianapolis Colts cornerback Cassius Vaughn during the first half of an NFL football game in Indianapolis, Sunday, Nov. 4, 2012. (AP Photo/Darron Cummings)

Houston Texans' Owen Daniels (81) celebrates a touchdown against the Buffalo Bills in the first quarter of an NFL football game Sunday, Nov. 4, 2012, in Houston. (AP Photo/Dave Einsel)

Tight end Antonio Gates #85 of the San Diego Chargers reaches for the end zone against defensive back Eric Berry #29 of the Kansas City Chiefs during an NFL football game at Qualcomm Stadium in San Diego, California, on November 1, 2012. (Ben Liebenberg/NFL)

Running back Ryan Mathews #24 of the San Diego Chargers carries the football against defensive back Javier Arenas #21 of the Kansas City Chiefs during an NFL football game at Qualcomm Stadium in San Diego, California, on November 1, 2012. (Nick Lucero/NFL)

Wide receiver Malcom Floyd #80 of the San Diego Chargers celebrates his touchdown catch against the Kansas City Chiefs during an NFL football game at Qualcomm Stadium in San Diego, California, on November 1, 2012. (Ben Liebenberg/NFL)

Houston Texans tight end Owen Daniels (81) raises the ball after catching a touchdown pass as Buffalo Bills cornerback Aaron Williams, left, defends in the first quarter of an NFL football game on Sunday, Nov. 4, 2012, in Houston. (AP Photo/David J. Phillip)

Carolina Panthers running back DeAngelo Williams (34) heads for a touchdown as he runs away from Washington Redskins inside linebacker Perry Riley (56) during the first half of an NFL football game Sunday, Nov. 4, 2012, in Landover, Md. (AP Photo/Nick Wass)

Houston Texans running back Arian Foster (23) dives for extra yards as Buffalo Bills strong safety George Wilson (37) trips him up in the first quarter of an NFL game Sunday, Nov. 4, 2012, in Houston. (AP Photo/Eric Gay)

Chicago Bears defensive end Corey Wootton (98) scores a touchdown after he recovered a blocked punt as Tennessee Titans punter Brett Kern, center, and safety Al Afalava (38) try to bring him down in the first quarter of an NFL football game Sunday, Nov. 4, 2012, in Nashville, Tenn. (AP Photo/Joe Howell)

Denver Broncos quarterback Peyton Manning (18) passes under pressure from Cincinnati Bengals defensive end Michael Johnson (93) during the first half of an NFL football game, Sunday, Nov. 4, 2012, in Cincinnati. (AP Photo/Tom Uhlman)

Buffalo Bills quarterback Ryan Fitzpatrick (14) is sacked by Houston Texans outside linebacker Connor Barwin in the second quarter of an NFL game Sunday, Nov. 4, 2012, in Houston. Houston Texans also defending on the play are J.J. Watt (99), Earl Mitchell (92) and Brooks Reed (58). (AP Photo/Eric Gay)

Detroit Lions running back Mikel Leshoure, right, is congratulated by quarterback Matthew Stafford (9) after he ran for a 7-yard touchdown against the Jacksonville Jaguars during the first half of an NFL football game, Sunday, Nov. 4, 2012, in Jacksonville, Fla. (AP Photo/Phelan M. Ebenhack)

Indianapolis Colts running back Vick Ballard, top, tries to leap over Miami Dolphins cornerback Nolan Carroll during the first half of an NFL football game in Indianapolis, Sunday, Nov. 4, 2012. (AP Photo/AJ Mast)

Washington Redskins wide receiver Josh Morgan (15) pushes away Carolina Panthers outside linebacker Thomas Davis (58) as Panthers outside linebacker Luke Kuechly (59) closes in during the first half of an NFL football game Sunday, Nov. 4, 2012, in Landover, Md. (AP Photo/Richard Lipski)

Green Bay Packers wide receiver Randall Cobb gets past Arizona Cardinals cornerback Patrick Peterson as he scores a touchdown during the first half of an NFL football game Sunday, Nov. 4, 2012, in Green Bay, Wis. between Green Bay and Arizona. (AP Photo/Mike Roemer)

Miami Dolphins running back Reggie Bush (22) scores a touchdown in front of teammate Marlon Moore during the first half of an NFL football game against the Indianapolis Colts in Indianapolis, Sunday, Nov. 4, 2012. (AP Photo/Darron Cummings)

Arizona Cardinals cornerback Jamell Fleming (23) pushes Green Bay Packers wide receiver James Jones (89) out of bounds during the first half of an NFL football game, Sunday, Nov. 4, 2012, in Green Bay, Wis. (AP Photo/Mike Roemer)

Jacksonville Jaguars running back Rashad Jennings (23) is swarmed by the Detroit Lions defense during the first half of an NFL football game, Sunday, Nov. 4, 2012, in Jacksonville, Fla. (AP Photo/Phelan M. Ebenhack)

Chicago Bears wide receiver Brandon Marshall (15) catches a 13-yard touchdown pass as he is defended by Tennessee Titans cornerback Coty Sensabaugh (24) and safety Michael Griffin (33) in the first quarter of an NFL football game on Sunday, Nov. 4, 2012, in Nashville, Tenn. (AP Photo/Joe Howell)

Carolina Panthers wide receiver Steve Smith (89) catches a touchdown pass as he is covered by Washington Redskins cornerback Josh Wilson (26) during the first half of an NFL football game, Sunday, Nov. 4, 2012, in Landover, Md. (AP Photo/Nick Wass)

Arizona Cardinals' LaRod Stephens-Howling (36) runs for a touchdown against Green Bay Packers' Brad Jones, right, during the first half of NFL football game Sunday, Nov. 4, 2012, in Green Bay, Wis. (AP Photo/Jeffrey Phelps)

Green Bay Packers' quarterback Aaron Rodgers avoids Arizona Cardinals' Darnell Dockett during the second half of an NFL football game Sunday, Nov. 4, 2012, in Green Bay, Wis. (AP Photo/Tom Lynn)

Indianapolis Colts wide receiver T.Y. Hilton, top, celebrates as he jumps into the arms of tackle Joe Reitz after scoring a touchdown against the Miami Dolphins during the second half of an NFL football game in Indianapolis, Sunday, Nov. 4, 2012. (AP Photo/Darron Cummings)

Houston Texans' Garrett Graham (88) spikes the ball after scoring a touchdown against the Buffalo Bills in the fourth quarter of an NFL football game on Sunday, Nov. 4, 2012, in Houston. (AP Photo/Eric Gay)

Baltimore Ravens wide receiver Torrey Smith (82) beats Cleveland Browns safety Usama Young to the goal line on a 19-yard touchdown catch in the fourth quarter of an NFL football game in Cleveland, Sunday, Nov. 4, 2012. (AP Photo/Rick Osentoski)

Chicago Bears wide receiver Brandon Marshall (15) catches a 39-yard touchdown pass ahead of Tennessee Titans cornerback Jason McCourty (30) in the fourth quarter of an NFL football game on Sunday, Nov. 4, 2012, in Nashville, Tenn. The Bears beat the Titans 51-20. (AP Photo/Joe Howell)

Carolina Panthers quarterback Cam Newton (1) reacts after his touchdown during the second half of an NFL football game against the Washington Redskins, Sunday, Nov. 4, 2012, in Landover, Md. (AP Photo/Richard Lipski)

Detroit Lions running back Joique Bell (35) leaps over Jacksonville Jaguars free safety Chris Prosinski (42) to avoid a tackle during the second half of an NFL football game, Sunday, Nov. 4, 2012, in Jacksonville, Fla. Detroit won 31-14. (AP Photo/Stephen Morton)

Green Bay Packers tight end Tom Crabtree pulls a pass in for a 72-yard touchdown in front of Arizona Cardinals inside linebacker Paris Lenon during the second half of an NFL football game Sunday, Nov. 4, 2012, in Green Bay, Wis. The Packers won 31-17. (AP Photo/Mike Roemer)

Green Bay Packers outside linebacker Erik Walden celebrates an interception with inside linebacker Brad Jones during the second half of an NFL football game against the Arizona Cardinals on Sunday, Nov. 4, 2012, in Green Bay, Wis. The Packers won 31-17. (AP Photo/Mike Roemer)

Arizona Cardinals' Larry Fitzgerald (11) runs leaps into the end zone for a touchdown against the Green Bay Packers' Dezman Moses, right, during the second half of NFL football game Sunday, Nov. 4, 2012, in Green Bay, Wis. Green Bay won 31-17. (AP Photo/Jeffrey Phelps)

Green Bay Packers tight end Tom Crabtree celebrates a 72-yard touchdown during the second half of an NFL football game Sunday, Nov. 4, 2012, in Green Bay, Wis. between Green Bay and Arizona. The Packers won 31-17. (AP Photo/Mike Roemer)

Chicago Bears running back Armando Allen (25) leaps past Tennessee Titans defensive tackle Karl Klug, top center, and linebacker Zach Brown (55) in the fourth quarter of an NFL football game on Sunday, Nov. 4, 2012, in Nashville, Tenn. The Bears beat the Titans 51-20. (AP Photo/Wade Payne)

Denver Broncos quarterback Peyton Manning throws a towel into the stands after the Broncos defeated the Cincinnati Bengals 31-23 in an NFL football game, Sunday, Nov. 4, 2012, in Cincinnati. (AP Photo/Tom Uhlman)

New York Giants defensive end Justin Tuck (91) sacks Pittsburgh Steelers quarterback Ben Roethlisberger (7) during the first half of an NFL football game, Sunday, Nov. 4, 2012, in East Rutherford, N.J. (AP Photo/Julio Cortez)

Tampa Bay Buccaneers wide receiver Vincent Jackson (83) catches a 20-yard touchdown pass over Oakland Raiders safety Michael Huff (24) during the second quarter of an NFL football game in Oakland, Calif., Sunday, Nov. 4, 2012. (AP Photo/Marcio Jose Sanchez)

Chicago Bears wide receiver Brandon Marshall (15) carries the ball as Tennessee Titans linebacker Zach Brown hangs on in the third quarter of an NFL football game on Sunday, Nov. 4, 2012, in Nashville, Tenn. Marshall scored three touchdowns as the Bears beat the Titans 51-20. At left is Titans defensive back Alterraun Verner (20). (AP Photo/Wade Payne)

Minnesota Vikings' Adrian Peterson reacts to scoring his second touchdown of the game as Seattle Seahawks' Richard Sherman stands at right, in the first half of an NFL football game, Sunday, Nov. 4, 2012, in Seattle. (AP Photo/Elaine Thompson)

Detroit Lions wide receiver Calvin Johnson (81) catches a pass against Jacksonville Jaguars cornerback Derek Cox (21) during the second half of an NFL football game, Sunday, Nov. 4, 2012, in Jacksonville, Fla. Detroit beat Jacksonville 31-14. (AP Photo/Stephen Morton)

Minnesota Vikings' Adrian Peterson (28) leaves Seattle Seahawks' Earl Thomas, lower left, on the ground after breaking a tackle in the first half of an NFL football game, Sunday, Nov. 4, 2012, in Seattle. (AP Photo/Elaine Thompson)

Wide receiver Larry Fitzgerald #11 of the Arizona Cardinals cannot complete a catch during week nine action between the Arizona Cardinals and Green Bay Packers at Lambeau Field in Green Bay, WI on Nov. 4, 2012. The Packers beat the Cardinals 31-17 (Todd Rosenberg/NFL)

Tampa Bay Buccaneers defensive end Michael Bennett (71) sacks Oakland Raiders quarterback Carson Palmer (3) during the second quarter of an NFL football game in Oakland, Calif., Sunday, Nov. 4, 2012. (AP Photo/Ben Margot)

Tampa Bay Buccaneers running back Doug Martin (22) stiff arms Oakland Raiders defensive back Tyvon Branch (33) as he runs for a 45-yard touchdown during the third quarter of an NFL football game in Oakland, Calif., Sunday, Nov. 4, 2012. (AP Photo/Ben Margot)

Tampa Bay Buccaneers running back Doug Martin (22) celebrates with tight end Dallas Clark (44) and guard Jamon Meredith (79) after scoring on a 45-yard touchdown run against the Oakland Raiders during the third quarter of an NFL football game in Oakland, Calif., Sunday, Nov. 4, 2012. (AP Photo/Marcio Jose Sanchez)

Oakland Raiders tight end Brandon Myers (83) scores on a 4-yard touchdown reception past Tampa Bay Buccaneers outside linebacker Lavonte David (54) during the fourth quarter of an NFL football game in Oakland, Calif., Sunday, Nov. 4, 2012. (AP Photo/Marcio Jose Sanchez)

Seattle Seahawks' Marshawn Lynch (24) carries Minnesota Vikings' Jared Allen with him as he rushes in the second half of an NFL football game, Sunday, Nov. 4, 2012, in Seattle. The Seahawks won 30-20. (AP Photo/Elaine Thompson)

Atlanta Falcons tight end Tony Gonzalez (88) stretches for extra yardage as Dallas Cowboys linebacker Bruce Carter (54) hangs on during the first half of an NFL football game, Sunday, Nov. 4, 2012, in Atlanta. (AP Photo/Rich Addicks)

Atlanta Falcons fullback Jason Snelling (44) is stopped by Dallas Cowboys cornerback Orlando Scandrick (32) during the first half of an NFL football game, Sunday, Nov. 4, 2012, in Atlanta. (AP Photo/Rich Addicks)