The freshman quarterback suffered a head injury on Saturday.
Michigan head coach Jim Harbaugh provided another injury update on starting quarterback Brandon Peters.
Appearing on his radio show Monday night, Harbaugh said Peters has improved over the last 24 hours and underwent additional concussion testing today.
Per the Detroit Free Press:
"He (went through) testing and he was 50 percent better, he's made great strides in the past 24 hours," Harbaugh said. "There's that hope (he can play). But it's totally in the doctor's hands. You hope for the best and we'll prepare both ways. That he will be there (and that he won't)."
Peters left Saturday's loss to Wisconsin after absorbing a brutal hit in the third quarter. He was replaced by previous starter John O'Korn.
O'Korn struggled mightily, drawing criticism from former Wolverine star Braylon Edwards.