Live blog: Air Force goes three-and-out

(Photo: Todd McInturf, Detroit News)Air Force goes three-and-out

After a sack to start the drive, Michigan's defense stepped up to force a third-and-long. Arion Worthman's pass was incomplete as he was drilled as he threw. Air Force would punt and Donovan Peoples-Jones signaled for a fair catch at his own 27.

Michigan punts after short drive

Wilton Speight's first down throw to Donovan Peoples-Jones was taken for 15 yards and another first down. Ty Isaac was stuffed for no gain on first and went down with an injury before being walked off to the sideline. A short pass from Speight to Tarik Black went for no gain as he was bottled up at the line of scrimmage. Another stop forced a Michigan punt…