Detroit Lions quarterback Matthew Stafford, right, greets Arizona Cardinals quarterback Ryan Lindley after a game, Dec. 16, 2012, in Glendale, Ariz. The Cardinals won 38-10. (AP Photo/Ross D. Franklin)

Denver Broncos quarterback Peyton Manning, left, is greeted by Oakland Raiders quarterback Carson Palmer at the end their game in Oakland, Dec. 6, 2012. Denver won the game 26-13. (AP Photo/Marcio Jose Sanchez)

Baltimore Ravens head coach John Harbaugh greets fans after a game against the New York Giants in Baltimore, Dec. 23, 2012. Baltimore won 33-14. (AP Photo/Nick Wass)

Denver Broncos head coach John Fox greets Tampa Bay Buccaneers head coach Greg Schiano at the end game, Dec. 2, 2012, in Denver. Denver won 31-23 and clinched the AFC West division. (AP Photo/Jack Dempsey)

Seattle Seahawks' Jermaine Kearse (11) greets San Francisco 49ers' Dashon Goldson after a game, Dec. 23, 2012, in Seattle. The Seahawks won 42-13. (AP Photo/Elaine Thompson)

New Orleans Saints quarterback Drew Brees (9) and Dallas Cowboys quarterback Tony Romo (9) greet each other after overtime game, Dec. 23, 2012, in Arlington, Texas. The Saints won 34-31. (AP Photo/Sharon Ellman)

Detroit Lions free safety Louis Delmas (26) is greeted by linebacker Justin Durant (52) and defensive end Willie Young (79) before a game against the Atlanta Falcons at Ford Field in Detroit, Dec. 22, 2012. (AP Photo/Duane Burleson )

Washington Redskins quarterback Kirk Cousins (12) greets fans after their 38-21 win over the Cleveland Browns in Cleveland, Dec. 16, 2012. Cousins threw for 329 yards and two touchdowns in his first NFL start. (AP Photo/Rick Osentoski)

Marine Brennen O'Neill greets fans entering Cleveland Browns Stadium before a game between the Washington Redskins and the Cleveland Browns, Dec. 16, 2012, in Cleveland. The Marines are collecting toys and donations for their annual "Toys for Tots" campaign. (AP Photo/Rick Osentoski)

Jacksonville Jaguars quarterback Chad Henne, right, greets New York Jets quarterback Mark Sanchez (6) at the game, Dec. 9, 2012, in Jacksonville, Fla. The Jets beat the Jaguars 17-10. (AP Photo/Stephen Morton)