Oct. 11, 2009; Glendale, AZ, USA; Arizona Cardinals running back Tim Hightower (34) stiff arms Houston Texans safety Bernard Pollard (31) in the second quarter at University of...

Arizona Cardinals running back Tim Hightower (34) fumbles as Minnesota Vikings safety Tyrell Johnson, Benny Sapp (22) and Madieu Williams defend during...

Arizona Cardinals running back Tim Hightower (34) escapes the tackle of Minnesota Vikings linebacker E.J. Henderson during the second half of...

Arizona Cardinals running back Tim Hightower (34) escapes the tackle of Minnesota Vikings linebacker E.J. Henderson during the second half of...

Vikings E.J. Henderson(56) collides with teammate Jamarca Sanford while trying to tackle Arizona's Tim Hightower in the fourth quarterof the NFL football game Sunday, Dec. 6, 2009 in Glendale, Ariz. Henderson...

CHARLOTTE, NC - OCTOBER 26: Tim Hightower #34 of the Arizona Cardinals dives into the end zone for a touchdown against the Carolina...

Minnesota Vikings v Arizona Cardinals GLENDALE, AZ - DECEMBER 14: Tim Hightower #34 of the Arizona Cardinals runs with the ball during their NFL game against the Minnesota...

...GLENDALE, AZ - JANUARY 18: Wide receiver Larry Fitzgerald #11 of the Arizona Cardinals reacts after teammate Tim Hightower #34 scored a touchdown in the fourth quarter against the Philadelphia Eagles during the NFC championship...

Arizona Cardinals' Larry Fitzgerald (11) reacts after teammate Tim Hightower caught a touchdown pass during the second half of the NFL NFC championship football game against...

Jan. 18, 2009; Glendale, AZ, USA; Arizona Cardinals running back Tim Hightower (34) runs for a touchdown during the fourth quarter of the NFC Championship game against the...

PHILADELPHIA - NOVEMBER 27: Running back Tim Hightower #34 of the Arizona Cardinals rushes against the Philadelphia Eagles at Lincoln Financial Field on November...

Arizona Cardinals' Tim Hightower (34) runs past Carolina Panthers' Jon Beason, left, and Ken Lucas, back right, for a touchdown...

GLENDALE, AZ - JANUARY 03: Runningback Tim Hightower #34 of the Arizona Cardinals celebrates after scoring a 4 yard rushing touchdown against the Atlanta...

Nov. 23, 2008; Glendale, AZ, USA; Arizona Cardinals running back Tim Hightower (34) against the New York Giants at University of Phoenix Stadium. Mandatory Credit: Rick Scuteri-US...

...by Rex Brown/Getty Images) Dallas Cowboys v Arizona Cardinals GLENDALE, AZ - OCTOBER 12: Running back Tim Hightower #34 of the Arizona Cardinals runs upfield during a 30-24 overtime win over the Dallas...