New Orleans Saints running back Chris Ivory (29) battles pressure from Cincinnati Bengals' Keith Rivers (55) and Chinedum Ndukwe (41). John Sommers / Reuters

Chicago Bears wide receiver Devin Hester jumps over Detroit Lions punter Nick Harris on a punt return. Rebecca Cook / Reuters

Zach Collaros #12 of the Cincinnati Bearcats reaches for a fumble during the Big East Conference game against the Pittsburgh Panthers. Andy Lyons / Getty Images / AFP

Buffalo Bills' Naaman Roosevelt (18) collides with Minnesota Vikings' Greg Camarillo (85) while trying to stop him on a punt-return. Ann Heisenfelt / AP

New York Giants defensive ends Osi Umenyiora and Justin Tuck (R) roll on the field as they celebrate after they sacked Washington Redskins quarterback Donovan McNabb in the fourth quarter. Ray Stubblebine / Reuters

Philadelphia Eagles running back LeSean McCoy (25) is tackled by the Houston Texans cornerback Jason Allen (30). Tim Shaffer / Reuters

Cleveland Browns cornerback Joe Haden, left, intercepts a pass intended for Miami Dolphins wide receiver Brian Hartline (82). Wilfredo Lee / AP

Green Bay Packers' Andrew Quarless, top, blocks San Francisco 49ers safety Dashon Goldson (38) as wide receiver Donald Driver (80) makes his way to the end zone for a 61-yard touchdown pass. Jeffrey Phelps / AP

Dallas Cowboys defensive backs Gerald Sensabaugh (L) and Orlando Scandrick and Cowboys tight end Martin Rucker (R) celebrate after Scandrick scored a touchdown against the Indianapolis Colts. Brent Smith / Reuters

Steam comes off of Jacksonville Jaguars offensive tackle Eugene Monroe as he takes a rest in the fourth quarter. Frederick Breedon / AP

Atlanta Falcons running back Michael Turner tries to evade Tampa Bay Buccaneers linebacker Quincy Black (58) and safety Corey Lynch (41). Pierre DuCharme / Reuters

Oakland Raiders wide receiver Louis Murphy catches a 37-yard pass against San Diego Chargers cornerback Quentin Jammer. Alex Gallardo / Reuters

St. Louis Rams runningback Stephen Jackson stiff-arms Arizona Cardinals cornerback Dominique Rodgers-Cromartie. Paul Connors / AP