St. Louis Rams mascot Rampage runs on the field before the start of the game against the New York Giants. (AP Photo/Charlie Riedel)

Washington Redskins quarterback Robert Griffin III celebrates after leading his team to a touchdown against the Philadelphia Eagles. (Aaron M. Sprecher/NFL)

Buffalo Bills wide receiver Sammy Watkins reacts after catching a 42-yard touchdown pass in front of Oakland Raiders cornerback D.J. Hayden. (AP Photo/Ben Margot)

The Carolina Panthers' Cam Newton celebrates after running for a touchdown against the Cleveland Browns. (AP Photo/Mike McCarn)

New York Giants tight end Larry Donnell is upended by St. Louis Rams cornerback E.J. Gaines after catching a pass for a 4-yard gain. (AP Photo/Charlie Riedel)

Detroit Lions running back Reggie Bush dives into the end zone for a touchdown against the Chicago Bears. (AP Photo/Charles Rex Arbogast)

New York Jets cornerback Antonio Allen (39) and Demario Davis (56) sack the New England Patriots' Tom Brady. (AP Photo/Bill Kostroun)

Houston Texans defensive end J.J. Watt celebrates after sacking Baltimore Ravens quarterback Joe Flacco. (AP Photo/David J. Phillip)

Dallas Cowboys head coach Jason Garrett is doused by Jeremy Mincey and quarterback Tony Romo after a42-7 win over the Indianapolis Colts clinched the NFC East title. (AP Photo/Brandon Wade)

Green Bay Packers running back Eddie Lacy scores against the Tampa Bay Buccaneers.

(AP Photo/Scott A. Miller)