Green out with ankle injury

Penn State will be without its second leading rusher Saturday when it hits the road to face Michigan.

Nittany Lions sophomore running back Stephfon Green won't make the trip to Ann Arbor because of an ankle injury, head coach Joe Paterno said Thursday night on his radio show. Green, who underwent ankle surgery in the offseason, suffered a setback last week against Minnesota and didn't practice this week.

The sophomore from the Bronx, N.Y., has rushed for 248 yards and three touchdowns on 49 carries this season. Sophomore Brandon Beachum will serve as Penn State's No. 2 running back behind Evan Royster, while junior Brent Carter will be the third stringer.

Michigan running backs Carlos Brown (concussion) and Brandon Minor (ankle) are both listed as probable on the team's injury report, issued Thursday night. Head coach Rich Rodriguez said Brown participated fully in practice this week, while Minor has been limited.

Adam Rittenberg covers Big Ten football for ESPN.com. He can be reached at espnritt@gmail.com.