San Diego Chargers outside linebacker Melvin Ingram, left, knocks a pass way from Denver Broncos quarterback Peyton Manning during the first half of an NFL football game Sunday, Dec. 14, 2014, in San Diego. (AP Photo/Lenny Ignelzi)

Green Bay Packers running back Eddie Lacy (27) is tackled by Buffalo Bills' Nigel Bradham (53) in the end zone for a safety during the second half of an NFL football game Sunday, Dec. 14, 2014, in Orchard Park, N.Y. The Bills won the game 21-13. (AP Photo/Gary Wiepert)

Carolina Panthers' Cam Newton, right, talks with Tampa Bay Buccaneers' Josh McCown, left, after an NFL football game in Charlotte, N.C., Sunday, Dec. 14, 2014. The Panthers won 19-17. (AP Photo/Mike McCarn)

Tennessee Titans kicker Ryan Succop (8) celebrates after making a 40-yard field goal against the New York Jets in the first half of an NFL football game Sunday, Dec. 14, 2014, in Nashville, Tenn. Titans holder Brett Kern (6) looks on. (AP Photo/Mark Zaleski)

Houston Texans wide receiver DeAndre Hopkins, center, is unable to hold on to a pass between Indianapolis Colts free safety Sergio Brown, left, and cornerback Vontae Davis during the second half of an NFL football game in Indianapolis, Sunday, Dec. 14, 2014. The Colts defeated the Texans 17-10. (AP Photo/AJ Mast)

Houston Texans running back Arian Foster, left, greets Indianapolis Colts wide receiver Reggie Wayne following a 17-10 win by the Colts in an NFL football game in Indianapolis, Sunday, Dec. 14, 2014. (AP Photo/AJ Mast)

Indianapolis Colts inside linebacker Jerrell Freeman celebrates as he leaves the field following a 17-10 win over the Houston Texans an NFL football game in Indianapolis, Sunday, Dec. 14, 2014. (AP Photo/AJ Mast)

Buffalo Bills kicker Dan Carpenter (2) kicks a field goal past Green Bay Packers' Sam Shields (37) during the second half of an NFL football game Sunday, Dec. 14, 2014, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Denver Broncos quarterback Peyton Manning, right, drops the ball as he is sacked by San Diego Chargers outside linebacker Melvin Ingram during the first half of an NFL football game Sunday, Dec. 14, 2014, in San Diego. The Broncos recovered their own fumble. (AP Photo/Chris Carlson)

New England Patriots quarterback Tom Brady, left, celebrates with head coach Bill Belichick after defeating the Miami Dolphins 41-13 in an NFL football game Sunday, Dec. 14, 2014, in Foxborough, Mass. (AP Photo/Charles Krupa)

Washington Redskins quarterback Robert Griffin III (10) fumbles the ball as he is sacked by New York Giants defensive tackle Johnathan Hankins (95) during the fourth quarter of an NFL football game, Sunday, Dec. 14, 2014, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Pittsburgh Steelers safety Robert Golden (21) celebrates with Pittsburgh Steelers defensive back Antwon Blake (41) after the second half of an NFL football game against the Atlanta Falcons, Sunday, Dec. 14, 2014, in Atlanta. The Pittsburgh Steelers won 27-20. (AP Photo/Brynn Anderson)

New York Giants wide receiver Odell Beckham Jr. (13) reacts with guard John Jerry (77) after scoring a touchdown against the Washington Redskins during the fourth quarter of an NFL football game, Sunday, Dec. 14, 2014, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Cleveland Browns quarterback Johnny Manziel (2) runs off the field after a 30-0 loss to the Cincinnati Bengals in an NFL football game Sunday, Dec. 14, 2014, in Cleveland. (AP Photo/Tony Dejak)

Buffalo Bills' Fred Jackson (22) leaps over Green Bay Packers' Ha Ha Clinton-Dix (21) during the second half of an NFL football game Sunday, Dec. 14, 2014, in Orchard Park, N.Y. (AP Photo/Gary Wiepert)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) writes on his jersey before he gives it away to Atlanta Falcons wide receiver Devin Hester after the second half of an NFL football game, Sunday, Dec. 14, 2014, in Atlanta. The Pittsburgh Steelers won 27-20. (AP Photo/Brynn Anderson)

Washington Redskins quarterback Robert Griffin III (10) walks to the sidelines during the fourth quarter of an NFL football game against the New York Giants, Sunday, Dec. 14, 2014, in East Rutherford, N.J. (AP Photo/Julio Cortez)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) and Pittsburgh Steelers guard David DeCastro (66) celebrate after the second half of an NFL football game against the Atlanta Falcons, Sunday, Dec. 14, 2014, in Atlanta. The Pittsburgh Steelers won 27-20. (AP Photo/David Goldman)

Green Bay Packers quarterback Aaron Rodgers (12) reacts after Jordy Nelson (87) drops a pass during the second half of an NFL football game against the Buffalo Bills, Sunday, Dec. 14, 2014, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Kansas City Chiefs running back Knile Davis (34) and Kansas City Chiefs wide receiver Albert Wilson (12) celebrate after Davis scored a 70-yard touchdown during the second half of an NFL football game against the Oakland Raiders in Kansas City, Mo., Sunday, Dec. 14, 2014. (AP Photo/Ed Zurga)

Carolina Panthers' Kelvin Benjamin, right, misses a catch as Tampa Bay Buccaneers' Johnthan Banks, left, defends in the first half of an NFL football game in Charlotte, N.C., Sunday, Dec. 14, 2014. (AP Photo/Bob Leverone)

Cleveland Browns quarterback Johnny Manziel watches from the sidelines in the fourth quarter of an NFL football game against the Cincinnati Bengals Sunday, Dec. 14, 2014, in Cleveland. (AP Photo/Tony Dejak)

Miami Dolphins wide receiver Rishard Matthews (18) catches a pass as New England Patriots defensive back Malcolm Butler (21) defends in the first half of an NFL football game Sunday, Dec. 14, 2014, in Foxborough, Mass. (AP Photo/Charles Krupa)

New England Patriots tight end Rob Gronkowski, left, celebrates his touchdown as wide receiver Brandon LaFell (19) watches and Miami Dolphins strong safety Reshad Jones (20) walks away in the second half of an NFL football game, Sunday, Dec. 14, 2014, in Foxborough, Mass. (AP Photo/Charles Krupa)

Kansas City Chiefs tight end Travis Kelce (87) scores a touchdown against Oakland Raiders linebacker Ray-Ray Armstrong (57) during the second half of an NFL football game in Kansas City, Mo., Sunday, Dec. 14, 2014. (AP Photo/Ed Zurga)

Atlanta Falcons wide receiver Roddy White (84) makes a touch-down catch against Pittsburgh Steelers defensive back Antwon Blake (41) during the second half of an NFL football game, Sunday, Dec. 14, 2014, in Atlanta. (AP Photo/Brynn Anderson)

Washington Redskins cornerback Bashaud Breeland (26) breaks up a pass intended for New York Giants wide receiver Odell Beckham (13) during the third quarter of an NFL football game, Sunday, Dec. 14, 2014, in East Rutherford, N.J. (AP Photo/Julio Cortez)

Baltimore Ravens tight end Owen Daniels (81) celebrates his touchdown with teammate fullback Kyle Juszczyk (44) during the second half of an NFL football game against the Jacksonville Jaguars in Baltimore, Sunday, Dec. 14, 2014. (AP Photo/Nick Wass)

New York Giants wide receiver Odell Beckham Jr. (13) celebrates with teammates after scoring a touchdown against the Washington Redskins during the third quarter of an NFL football game, Sunday, Dec. 14, 2014, in East Rutherford, N.J. (AP Photo/Bill Kostroun)

Carolina Panthers' Bene' Benwikere (25) breaks up a pass to Tampa Bay Buccaneers' Vincent Jackson (83) in the second half of an NFL football game in Charlotte, N.C., Sunday, Dec. 14, 2014. (AP Photo/Bob Leverone)

Baltimore Ravens wide receiver Marlon Brown (14) spins around Jacksonville Jaguars free safety Josh Evans (26) during the second half of an NFL football game in Baltimore, Sunday, Dec. 14, 2014. (AP Photo/Patrick Semansky)

Baltimore Ravens tight end Owen Daniels (81) celebrates his touchdown reception during the second half of an NFL football game against the Jacksonville Jaguars in Baltimore, Sunday, Dec. 14, 2014. (AP Photo/Nick Wass)

Cleveland Browns cornerback Buster Skrine (22) breaks up a pass to Cincinnati Bengals wide receiver A.J. Green (18) in the third quarter of an NFL football game Sunday, Dec. 14, 2014, in Cleveland. (AP Photo/David Richard)

Oakland Raiders defensive end C.J. Wilson, top, catches a ball which was fumbled by Kansas City Chiefs tight end Travis Kelce (87) after a hit by Raiders strong safety Brandian Ross (29) during the second half of an NFL football game in Kansas City, Mo., Sunday, Dec. 14, 2014. (AP Photo/Charlie Riedel)

Washington Redskins quarterback Robert Griffin III (10) throws under pressure from New York Giants defensive end Damontre Moore (98) during the second quarter of an NFL football game, Sunday, Dec. 14, 2014, in East Rutherford, N.J. (AP Photo/Julio Cortez)

Jacksonville Jaguars quarterback Blake Bortles (5) is sacked by Baltimore Ravens inside linebacker C.J. Mosley (57) and outside linebacker Terrell Suggs (55) during the first half of an NFL football game in Baltimore, Sunday, Dec. 14, 2014. (AP Photo/Patrick Semansky)

Miami Dolphins wide receiver Mike Wallace (11) catches a touchdown pass in front of New England Patriots defensive back Malcolm Butler, right rear, and safety Devin McCourty (32) in the first half of an NFL football game Sunday, Dec. 14, 2014, in Foxborough, Mass. (AP Photo/Charles Krupa)

A Baltimore Ravens cheerleader performs during the first half of an NFL football game against the Jacksonville Jaguars in Baltimore, Sunday, Dec. 14, 2014. (AP Photo/Nick Wass)

Kansas City Chiefs wide receiver Dwayne Bowe (82) makes a 37-yard catch against the defense of Oakland Raiders cornerback Tarell Brown (23) during the first half of an NFL football game in Kansas City, Mo., Sunday, Dec. 14, 2014. (AP Photo/Ed Zurga)

Cincinnati Bengals running back Jeremy Hill (32) runs against Cleveland Browns strong safety Donte Whitner in the second quarter of an NFL football game Sunday, Dec. 14, 2014, in Cleveland. (AP Photo/Tony Dejak)

Pittsburgh Steelers quarterback Ben Roethlisberger (7) celebrates a Pittsburgh Steelers running back Le'Veon Bell touchdown against the Atlanta Falcons during the first half of an NFL football game, Sunday, Dec. 14, 2014, in Atlanta. (AP Photo/Brynn Anderson)

Pittsburgh Steelers wide receiver Antonio Brown (84) makes a catch against Atlanta Falcons cornerback Desmond Trufant (21) during the first half of an NFL football game, Sunday, Dec. 14, 2014, in Atlanta. (AP Photo/David Goldman)

Oakland Raiders cornerback D.J. Hayden (25) stretches but can't reach an incomplete pass to Kansas City Chiefs wide receiver Dwayne Bowe, right, during the first half of an NFL football game in Kansas City, Mo., Sunday, Dec. 14, 2014. (AP Photo/Charlie Riedel)

Pittsburgh Steelers wide receiver Martavis Bryant (10) attempts a catch against Atlanta Falcons cornerback Robert McClain (27) during the first half of an NFL football game, Sunday, Dec. 14, 2014, in Atlanta. Bryant lost the ball. (AP Photo/David Goldman)

Kansas City Chiefs outside linebacker Justin Houston (50) reacts after sacking Oakland Raiders quarterback Derek Carr during the first half of an NFL football game in Kansas City, Mo., Sunday, Dec. 14, 2014. (AP Photo/Charlie Riedel)

Indianapolis Colts wide receiver Hakeem Nicks (14) celebrates a touchdown with teammate Coby Fleener (80) during the first half of an NFL football game against the Houston Texans in Indianapolis, Sunday, Dec. 14, 2014. (AP Photo/Darron Cummings)

Oakland Raiders free safety Charles Woodson (24) tackles Kansas City Chiefs wide receiver Jason Avant during the first half of an NFL football game in Kansas City, Mo., Sunday, Dec. 14, 2014. (AP Photo/Charlie Riedel)

Atlanta Falcons wide receiver Devin Hester (17) prepares to make a touch-down catch against Pittsburgh Steelers defensive back Antwon Blake (41) during the first half of an NFL football game, Sunday, Dec. 14, 2014, in Atlanta. (AP Photo/Brynn Anderson)

Green Bay Packers nose tackle Letroy Guion (98) celebrates a sack of Buffalo Bills quarterback Kyle Orton (18) during the first half of an NFL football game Sunday, Dec. 14, 2014, in Orchard Park, N.Y. (AP Photo/Bill Wippert)

Buffalo Bills' Marcus Thigpen, front right, runs away from Green Bay Packers' Tim Masthay (8) and Jarrett Boykin for a touchdown during a punt return in the first half of an NFL football game Sunday, Dec. 14, 2014, in Orchard Park, N.Y. (AP Photo/Gary Wiepert)

Cincinnati Bengals running back Jeremy Hill (32) breaks a tackle by Cleveland Browns defensive back Jim Leonhard on his way to a 16-yard touchdown in the second quarter of an NFL football game Sunday, Dec. 14, 2014, in Cleveland. (AP Photo/Tony Dejak)

Miami Dolphins strong safety Reshad Jones (20) tackles New England Patriots wide receiver Julian Edelman (11) in the first half of an NFL football game Sunday, Dec. 14, 2014, in Foxborough, Mass. (AP Photo/Charles Krupa)

Houston Texans free safety Kendrick Lewis (21) dives into the end zone for a touchdown in front of Indianapolis Colts running back Trent Richardson (34) on an interception during the first half of an NFL football game in Indianapolis, Sunday, Dec. 14, 2014. (AP Photo/AJ Mast)

Pittsburgh Steelers cornerback William Gay (22) celebrates his touchdown against the Atlanta Falcons during the first half of an NFL football game, Sunday, Dec. 14, 2014, in Atlanta. Gay intercepted the ball off Atlanta Falcons quarterback Matt Ryan. (AP Photo/David Goldman)

Houston Texans defensive back Darryl Morris (21) dives into the end zone for a touchdown on an interception from Indianapolis Colts quarterback Andrew Luck during the first half of an NFL football game in Indianapolis, Sunday, Dec. 14, 2014. (AP Photo/Darron Cummings)

Tampa Bay Buccaneers' Mike Evans (13) catches a touchdown pass against Carolina Panthers' Josh Norman (24) in the first half of an NFL football game in Charlotte, N.C., Sunday, Dec. 14, 2014. (AP Photo/Mike McCarn)

Kansas City Chiefs running back De'Anthony Thomas (13) flips as he scores a touchdown on a 81-yard punt return during the first half of an NFL football game against the Oakland Raiders in Kansas City, Mo., Sunday, Dec. 14, 2014. (AP Photo/Charlie Riedel)

Former New England Patriots quarterback Drew Bledsoe, left, speaks with former Miami Dolphins quarterback Dan Marino before an NFL football game between the teams Sunday, Dec. 14, 2014, in Foxborough, Mass. (AP Photo/Steven Senne)

Baltimore Ravens wide receiver Kamar Aiken (11) celebrates his touchdown with teammate free safety Darian Stewart (24) during the first half of an NFL football game against the Jacksonville Jaguars in Baltimore, Sunday, Dec. 14, 2014. Aiken scored on a blocked punt. (AP Photo/Nick Wass)

New England Patriots cornerback Kyle Arrington (25) dives into the end zone for a touchdown after returning a blocked field goal-attempt between Miami Dolphins middle linebacker Jason Trusnik (93) and defensive tackle Earl Mitchell (90) in the first half of an NFL football game Sunday, Dec. 14, 2014, in Foxborough, Mass. (AP Photo/Steven Senne)

Houston Texans wide receiver DeAndre Hopkins, right, makes a catch in front of Indianapolis Colts cornerback Greg Toler during the first half of an NFL football game in Indianapolis, Sunday, Dec. 14, 2014. The catch was challenged by the Colts and the ruling on the field was reversed. (AP Photo/AJ Mast)

Washington Redskins quarterback Colt McCoy (16) waits for the snap at the line of scrimmage during the first quarter of an NFL football game against the New York Giants, Sunday, Dec. 14, 2014, in East Rutherford, N.J. (AP Photo/Julio Cortez)

Baltimore Ravens wide receiver Kamar Aiken (11) carries the ball into the end zone for a touchdown after scooping up a blocked punt during the first half of an NFL football game against the Jacksonville Jaguars in Baltimore, Sunday, Dec. 14, 2014. (AP Photo/Nick Wass)

Atlanta Falcons wide receiver Roddy White (84) takes the field before the first half of an NFL football game against the Pittsburgh Steelers, Sunday, Dec. 14, 2014, in Atlanta. (AP Photo/Brynn Anderson)

Atlanta Falcons quarterback Matt Ryan (2) cheers in the huddle before the first half of an NFL football game against the Pittsburgh Steelers, Sunday, Dec. 14, 2014, in Atlanta. (AP Photo/David Goldman)

St. Louis Rams players enter the field during the NFL regular season game against the Arizona Cardinals and the St. Louis Rams on Sunday, Dec. 11, 2014 at Edwards Jones Arena in St. Louis. (Ric Tapia/NFL)

St. Louis Rams cornerback Janoris Jenkins (21) deflects a pass away from Arizona Cardinals wide receiver Michael Floyd (15) during the NFL regular season game against the Arizona Cardinals and the St. Louis Rams on Sunday, Dec. 11, 2014 at Edwards Jones Arena in St. Louis. (Ric Tapia/NFL)

Arizona Cardinals wide receiver Ted Ginn (19) runs out of bounds during the NFL regular season game against the Arizona Cardinals and the St. Louis Rams on Sunday, Dec. 11, 2014 at Edwards Jones Arena in St. Louis. (Ric Tapia/NFL)

St. Louis Rams' Kenny Britt (81) sits on the field following an NFL football game against the Arizona Cardinals Thursday, Dec. 11, 2014 in St. Louis. Arizona won 12-6 (AP Photo/Tom Gannam)

St. Louis Rams quarterback Shaun Hill (14) throws an incomplete pass as he is tackled by Arizona Cardinals outside linebacker Alex Okafor (57) during the first half of an NFL football game Thursday, Dec. 11, 2014 in St. Louis. (AP Photo/Jeff Roberson)

Arizona Cardinals wide receiver Jaron Brown (13) flips after being hit by St. Louis Rams' E.J. Gaines during the first half of an NFL football game Thursday, Dec. 11, 2014 in St. Louis. (AP Photo/Tom Gannam)

Arizona Cardinals' Michael Floyd (15) leaps to make a catch while being defended by St. Louis Rams' T.J. McDonald (25) during the first half of an NFL football game Thursday, Dec. 11, 2014 in St. Louis. The pass was incomplete. (AP Photo/Jeff Roberson)

Kansas City Chiefs cheerleaders dance during the second half of an NFL football game against the Oakland Raiders in Kansas City, Mo., Sunday, Dec. 14, 2014. (AP Photo/Charlie Riedel)

San Diego Chargers tight end Antonio Gates, top, scores under pressure by Denver Broncos strong safety T.J. Ward during the second half in an NFL football game Sunday, Dec. 14, 2014, in San Diego. (AP Photo/Denis Poroy)

Denver Broncos wide receiver Demaryius Thomas, right, scores past San Diego Chargers defensive back Jahleel Addae during the second half of an NFL football game Sunday, Dec. 14, 2014, in San Diego. (AP Photo/Lenny Ignelzi)

New York Jets wide receiver Eric Decker (87) is unable to hang onto a pass as he is defended by Tennessee Titans cornerback Coty Sensabaugh (24) in the second half of an NFL football game Sunday, Dec. 14, 2014, in Nashville, Tenn. (AP Photo/Mark Zaleski)

Seattle Seahawks wide receiver Doug Baldwin (89) and San Francisco 49ers defensive back Leon McFadden (30) jump for the ball during the NFL game on Sunday, Dec. 14, 2014 at CenturyLink Field in Seattle. (Ric Tapia/NFL)

Seattle Seahawks wide receiver Doug Baldwin (89) tries to tackle San Francisco 49ers free safety Eric Reid (35) after Reid intercepted a pass in the first half of an NFL football game, Sunday, Dec. 14, 2014, in Seattle. (AP Photo/Elaine Thompson)

Detroit Lions quarterback Matthew Stafford (9) outruns Minnesota Vikings defensive end Brian Robison (96) during the first half of an NFL football game at Ford Field in Detroit, Sunday, Dec. 14, 2014. (AP Photo/Rick Osentoski)

Oakland Raiders wide receiver Andre Holmes (18) makes a catch as Kansas City Chiefs cornerback Marcus Cooper (31) defends during the second half of an NFL football game in Kansas City, Mo., Sunday, Dec. 14, 2014. The Chiefs won 31-13. (AP Photo/Ed Zurga)

Detroit Lions cornerback Rashean Mathis jumps during his introduction before the first half of an NFL football game against the Minnesota Vikings at Ford Field in Detroit, Sunday, Dec. 14, 2014. (AP Photo/Rick Osentoski)

Buffalo Bills Owner Terry Pegula, left, hugs defensive end Mario Williams after an NFL football game against the Green Bay Packers, Sunday, Dec. 14, 2014, in Orchard Park, N.Y. The Bills won the game 21-13. (AP Photo/Bill Wippert)

Dallas Cowboys' Dez Bryant (88) pulls in a touchdown against Philadelphia Eagles' Bradley Fletcher (24) during the second half of an NFL football game, Sunday, Dec. 14, 2014, in Philadelphia. (AP Photo/Matt Rourke)

Philadelphia Eagles' Josh Huff, right, is sent flying after a hit from Dallas Cowboys' J.J. Wilcox on a kick off return during the first half of an NFL football game, Sunday, Dec. 14, 2014, in Philadelphia. (AP Photo/Matt Rourke)

Dallas Cowboys' Dez Bryant, left, pulls in a touchdown pass against Philadelphia Eagles' Bradley Fletcher during the first half of an NFL football game, Sunday, Dec. 14, 2014, in Philadelphia. (AP Photo/Michael Perez)

New Orleans Saints running back Pierre Thomas (23) carries the ball against Chicago Bears outside linebacker Jon Bostic (57) during the first half of an NFL football game Monday, Dec. 15, 2014, in Chicago. (AP Photo/Charles Rex Arbogast)

Chicago Bears offensive coordinator Aaron Kromer talks to quarterback Jay Cutler (6) before an NFL football game against the New Orleans Saints Monday, Dec. 15, 2014, in Chicago. (AP Photo/Nam Y. Huh)

New Orleans Saints tight end Josh Hill (89) celebrates a touchdown during the first half of an NFL football game against the Chicago Bears Monday, Dec. 15, 2014, in Chicago. (AP Photo/Nam Y. Huh)