Buffalo Bills' David Nelson (86) catches a touchdown pass under pressure from Cleveland Browns' Mike Adams (20) during the first half of an NFL football game in Orchard Park, N.Y., Sunday, Dec. 12, 2010. (AP Photo/David Duprey)

New York Jets quarterback Mark Sanchez (6) fumbles the ball as he is hit by Miami Dolphins linebacker Cameron Wake (91) during the second quarter of an NFL football game at New Meadowlands Stadium, Sunday, Dec. 12, 2010, in East Rutherford, N.J. The Jets recovered the fumble. (AP Photo/Bill Kostroun)

Washington Redskins quarterback Donovan McNabb (5) is sacked by Tampa Bay Buccaneers linebacker Quincy Black (58) and Michael Bennett, rear, during the first half of an NFL football game in Landover, Md., Sunday, Dec. 12, 2010. (AP Photo/Rob Carr)

Tennessee Titans fullback Ahmard Hall (45) runs the ball against the defense of Indianapolis Colts linebacker Kavell Conner (53) at LP Field in Nashville, Tennessee on Dec. 9, 2010. (Aaron M. Sprecher/NFL)

Indianapolis Colts wide receiver Pierre Garcon (85) celebrates after catching a touchdown pass against the Tennessee Titans in the second quarter of an NFL football game on Thursday, Dec. 9, 2010, in Nashville, Tenn. At left is Colts wide receiver Blair White (15). (AP Photo/Joe Howell)

San Diego Chargers' Kris Wilson celebrates a tackle against Kansas City Chiefs' Dexter McCluster during the second half of an NFL football game in San Diego, Sunday, Dec. 12, 2010. (AP Photo/Gregory Bull)

San Diego Chargers cornerback Antoine Cason, right, runs around Kansas City Chiefs cornerback Javier Arenas during the second half of an NFL football game, Sunday, Dec. 12, 2010, in San Diego. (AP Photo/Denis Poroy)

Kansas City Chiefs quarterback Tyler Palko (4) grabs the face mask of San Diego Chargers Antwan Applewhite (90) as he scrambles during the fourth quarter an NFL football game Sunday, Dec. 12, 2010 in San Diego. The Chargers won 31-0. (AP Photo/Denis Poroy)

Miami Dolphins Ronnie Brown (23) is tackled during the fist half of an NFL football game against the New York Jets on Sunday, Dec. 12, 2010, in East Rutherford, New Jeresy. (Rueben Canales/NFL)

New England Patriots running back BenJarvus Green-Ellis (42) is tackled by Chicago Bears linebacker Brian Urlacher (54) in the first half of an NFL football game in Chicago, Sunday, Dec. 12, 2010. (AP Photo/Charles Rex Arbogast)

San Francisco 49ers cornerback Nate Clements (22) tackles Seattle Seahawks running back Marshawn Lynch (24) in the third quarter of an NFL football game in San Francisco, Sunday, Dec. 12, 2010. (AP Photo/Marcio Jose Sanchez)

Miami Dolphins Lousaka Polite (36)) is tackled during the fist half of an NFL football game against the New York Jets on Sunday, Dec. 12, 2010, in East Rutherford, New Jeresy. (Rueben Canales/NFL)

San Diego Chargers running back Ryan Mathews (24) flips over Kansas City Chiefs safety Eric Berry during the second half of an NFL football game, Sunday, Dec. 12, 2010, in San Diego. (AP Photo/Denis Poroy)

Denver Broncos running back Knowshon Moreno, right, is tackled by Arizona Cardinals safety Adrian Wilson, left, during the second quarter of an NFL football game Sunday, Dec. 12, 2010, in Glendale, Ariz. (AP Photo/Paul Connors)

Arizona Cardinals' Jay Feely (4) celebrates his touchdown run after faking a field goal during the second quarter of an NFL football game against the Denver Broncos Sunday, Dec. 12, 2010 in Glendale, Ariz. (AP Photo/Rick Scuteri)

Chicago Bears wide receiver Johnny Knox (13) misses a catch while covered by New England Patriots cornerback Kyle Arrington (27) in the first half of an NFL football game in Chicago, Sunday, Dec. 12, 2010. (AP Photo/Charles Rex Arbogast)

New England Patriots running back BenJarvus Green-Ellis (42) is tackled by Chicago Bears safety Major Wright (27) in the first half of an NFL football game in Chicago, Sunday, Dec. 12, 2010. (AP Photo/Charles Rex Arbogast)

Kansas City Chiefs running back Thomas Jones is tackled by San Diego Chargers safety Eric Weddle during the first half of an NFL football game in San Diego, Sunday, Dec. 12, 2010. (AP Photo/Denis Poroy)

New Orleans Saints wide receiver Marques Colston, center, makes a touchdown catch as he is tackled by St. Louis Rams linebacker James Laurinaitis, left, and safety James Butler, right, in the first half of an NFL football game at the Louisiana Superdome in New Orleans, Sunday, Dec. 12, 2010. (AP Photo/Bill Haber)

Seattle Seahawks quarterback Matt Hasselbeck (8) fumbles as he is hit by San Francisco 49ers linebacker Travis LaBoy (54) in the second quarter of an NFL football game in San Francisco, Sunday, Dec. 12, 2010. (AP Photo/Marcio Jose Sanchez)

Detroit Lions running back Maurice Morris (28) is tripped up by Green Bay Packers safety Nick Collins (36) in the first half of the NFL football game in Detroit, Sunday , Dec. 12, 2010. Detroit won 7-3. (AP Photo/Rick Osentoski)

Oakland Raiders running back Darren McFadden (20), right, stiff-arms Jacksonville Jaguars cornerback Don Carey (22) on a 36-yard touchdown run during the second half of an NFL football game in Jacksonville, Fla., Sunday, Dec. 12, 2010. The Jaguars won 38-31. (AP Photo/Phelan M. Ebenhack)

San Diego Chargers wide receiver Malcom Floyd catches a touchdown pass against Kansas City Chiefs cornerback Brandon Flowers during the first half of an NFL football game in San Diego, Sunday, Dec. 12, 2010. (AP Photo/Gregory Bull)

Atlanta Falcons' Michael Turner (33) dives in for a touchdown against the Carolina Panthers during the first half of an NFL football game in Charlotte, N.C., Sunday, Dec. 12, 2010. (AP Photo/Nell Redmond)

New England Patriots running back Danny Woodhead (39) is tackled by Chicago Bears defensive end Corey Wootton (98) and linebacker Brian Urlacher (54) in the first half an NFL football game in the snow in Chicago, Sunday, Dec. 12, 2010. (AP Photo/Kiichiro Sato)

Cleveland Browns linebacker Marcus Benard, left, watches from the sidelines as Buffalo Bills tight end David Martin tumbles after a catch during the second half of an NFL football game in Orchard Park, N.Y. on Sunday, Dec. 12, 2010. Buffalo won 13-6. (AP Photo/Don Heupel)

Tampa Bay Buccaneers quarterback Josh Freeman pushes across the goal line for a two-point conversion during the second half of an NFL football game against the Washington Redskins in Landover, Md., Sunday, Dec. 12, 2010. Tampa Bay won 17-16. (AP Photo/Nick Wass)

Green Bay Packers quarterback Aaron Rodgers (12) is pressured by Detroit Lions defensive end Turk McBride (75) while being blocked by Green Bay Packers offensive tackle Chad Clifton (76) in the second quarter of their NFL football game in Detroit, Sunday, Dec. 12, 2010. (AP Photo/Paul Sancya)