Michigan football defensive coordinator Wink Martindale returned from his month-long hiatus in July to something unexpected.
Cole Sullivan , a 19-year-old sophomore linebacker, looked like a new man.
"A guy like Cole Sullivan has completely changed his body, just walking around," Martindale said at the time. "You can see it going through drills and doing all of those things ... when I first came here, he was a 17-year-old kid that was supposed to go to prom and graduation, but he was here playing in spring ball. You’ve seen him develop since.”