Unfavorable injury news for Michigan's running back.

An important player for the Michigan Wolverines against the Illinois Fighting Illini will not play.Donovan Edwards, a Michigan running back, was declared ineligible

prior to Saturday's match against Illinois.For unknown circumstances, the sophomore running back left last week's game against Nebraska early. Up until today, there had been

no real status report, and Edwards had been immediately ruled out. The Detroit Free Press' Tony Garcia broke the news of Edwards' absence.Donovan Edwards is OUT for Michigan today,

a club spokesman tells the Free Press, Garcia writes. A week ago, the sophomore running back played twice on the first series but left before Nebraska's last three quarters.

Edwards is an important part of the Michigan offense. Blake Corum, the season's top rusher, has been his stand-in. He has so far racked up 471 yards on 70 carries while scoring 

four rushing touchdowns.Prior to getting hurt, the sophomore contributed to the passing game as well. He has 179 yards and two scores on 14 receptions this season.

Against Illinois, the Wolverines will deal with a potent rushing onslaught. Chase Brown, the best rusher in the country with 1,442 yards this season,

is a Fighting Illini. Now that Edwards is out, the Wolverines must largely rely on Corum.