Dallas Cowboys running back DeMarco Murray (29) carries the ball against Chicago Bears defense, Thursday, Dec. 4, 2014, in Chicago. 

Chicago Bears wide receiver Alshon Jeffery (17) catches a touchdown pass against Dallas Cowboys cornerback Brandon Carr (39).

Pittsburgh Steelers running back Le'Veon Bell (26) scores a touchdown against Cincinnati Bengals outside linebacker Emmanuel Lamur (59) during the second half, Sunday, Dec. 7, 2014 in Cincinnati.

Cincinnati Bengals wide receiver A.J. Green (18) stiff arms Pittsburgh Steelers cornerback Ike Taylor (24).

Indianapolis Colts wide receiver T.Y. Hilton celebrates a touchdown catch against the Cleveland Browns in the second half, Sunday, Dec. 7, 2014, in Cleveland.

Cleveland Browns cornerback Justin Gilbert (21) returns an interception for a touchdown against the Indianapolis Colts in the second half.

Detroit Lions running back Joique Bell (35) runs through the Tampa Bay Buccaneers defense during the first half in Detroit, Sunday, Dec. 7, 2014.

Tampa Bay Buccaneers wide receiver Mike Evans (13) makes a touchdown catch as Detroit Lions strong safety James Ihedigbo (32) defends.

New York Giants wide receiver Odell Beckham Jr. (13) tries to get past Tennessee Titans cornerback Jason McCourty (30) in the first half, Sunday, Dec. 7, 2014, in Nashville, Tenn.

Tennessee Titans quarterback Zach Mettenberger (7) passes as he is hit by New York Giants defensive tackle Johnathan Hankins (95).

Baltimore Ravens wide receiver Marlon Brown (14) jumps over Miami Dolphins free safety Louis Delmas (25) during the second half, Sunday, Dec. 7, 2014, in Miami Gardens, Fla.

Miami Dolphins defensive back R.J. Stanford (41) intercepts a pass intended for Baltimore Ravens wide receiver Steve Smith (89).

Minnesota Vikings wide receiver Charles Johnson runs from New York Jets cornerback Darrin Walls (left) for a touchdown in the first half, Sunday, Dec. 7, 2014, in Minneapolis. 

New York Jets wide receiver Percy Harvin (left) catches a touchdown pass in front of Minnesota Vikings cornerback Josh Robinson (21) during the first half.

Carolina Panthers running back Jonathan Stewart (28) runs for a touchdown as New Orleans Saints cornerback Patrick Robinson (21) chases in the second half, Sunday, Dec. 7, 2014, in New Orleans.

New Orleans Saints tight end Jimmy Graham (80) is upended as Carolina Panthers middle linebacker Luke Kuechly (right) closes in.

St. Louis Rams wide receiver Tavon Austin (11) returns a punt for a touchdown during the second half against the Washington Redskins in Landover, Md., Sunday, Dec. 7, 2014.

Washington Redskins quarterback Colt McCoy (16) passes the ball during the first half against the St. Louis Rams. 

Houston Texans running back Arian Foster (23) runs past Jacksonville Jaguars outside linebacker Geno Hayes (55) for a touchdown during the second half in Jacksonville, Fla., Sunday, Dec. 7, 2014.

Jacksonville Jaguars wide receiver Marqise Lee (left) makes a reception over Houston Texans cornerback A.J. Bouye (34).

Wide receiver Chris Hogan (15) of the Buffalo Bills strides into the end zone untouched for a fourth quarter touchdown.

Free safety Rahim Moore (26) of the Denver Broncos celebrates after recovering a Buffalo Bills fumble in the first quarter. 

Defensive end Calais Campbell (93) of the Arizona Cardinals tackles quarterback Alex Smith (11) of the Kansas City Chiefs during the second quarter

Strong safety Ron Parker (38) of the Kansas City Chiefs tackles wide receiver Larry Fitzgerald (11) of the Arizona Cardinals in the first half.

Colin Kaepernick (7) of the San Francisco 49ers scrambles in the second quarter behind Alex Boone (75) of the San Francisco 49ers against the Oakland Raiders. 

Justin Tuck (91) of the Oakland Raiders celebrates with his fans in the fourth quarter against the San Francisco 49ers.

Vinny Curry (75) of the Philadelphia Eagles attempts to tackle quarterback Russell Wilson (3) of the Seattle Seahawks in the first quarter.

Mychal Kendricks (95) of the Philadelphia Eagles reacts against the Seattle Seahawks in the first half.

Malcom Floyd (80) of the San Diego Chargers catches a touchdown pass against Brandon Browner (39) of the New England Patriots during an NFL Game at Qualcomm Stadium.

Running back LeGarrette Blount (29) of the New England Patriots runs against the San Diego Charger defense at Qualcomm Stadium.