Michigan's Mike Hart was limited to playing just the first half of the Wolverines' 48-21 victory over Purdue on Saturday after limping to the sideline with an apparent right ankle injury. After coming out in the second quarter, Hart appeared to be relatively healthy in the second half as he smiled and laughed with teammates while watching the game. "Talk to coach [Lloyd] Carr," he said repeatedly as he walked off the field after the game. Carr bristled during his news conference when asked about the extent of the injury and whether it would keep Hart out of the next game at No. 18 Illinois, but was a little more forthcoming during Michigan's radio broadcast. "How much swelling and how he feels in these next couple of days will really be the determining factor on what it looks like in terms of him coming back," he said. "He's a tough guy, a quick healer."