Oakland raiders quarterback Charlie Frye (3) hands off to Michael Bush in the first quarter of the NFL football game against the Denver Broncos in Denver on...

Oakland Raiders running back Michael Bush (29) is congratulated by teammate Brandon Myers (83) after running for a touchdown during the second...

Oakland Raiders running back Michael Bush runs for a touchdown during the second quarter of an NFL football game against the Denver...

December 28, 2008; Tampa, FL, USA; Oakland Raiders running back Michael Bush (29) runs through Tampa Bay Buccaneers defense during the second half of the game at Raymond...

TAMPA, FL - DECEMBER 28: Running back Michael Bush #29 of the Oakland Raiders rushes upfield against the Tampa Bay Buccaneers at Raymond James Stadium...

Michael Bush, JaMarcus Russell

Michael Bush broke his leg in Louisville's first game last season

Michael Bush, seen here before his 2006 season was cut short by a broken leg, won't return...

3 September 2006: Louisville running back Michael Bush runs 48 yards for a touchdown during the Cardinals 59-28 victory over the Wildcats at...

Louisville running back Michael Bush has an uphill battle for Heisman votes ahead of him

Michael Bush and the Cardinals are focused on lofty goals for 2006

Michael Bush's size and speed create many problems for defenses

Michael Bush powered his way to 734 yards and seven TDs in 2004

Michael Bush and the Cardinals sprinted to 11 wins in 2004

...San Diego, CA, USA; Atlanta Falcons running back Michael Turner (33) carries the ball against the San...FL, USA; New Orleans Saints running back Reggie Bush (25) against the Tampa Bay Buccaneers during the...