For what it's worth:
“The safety of our student-athletes is always our top priority. We generally never discuss the specifics of a student-athlete's medical care, but Shane Morris was removed from yesterday's game against Minnesota after further aggravating an injury to his leg that he sustained earlier in the contest. He was evaluated by our experienced athletic trainers and team physicians, and we're confident proper medical decisions were made.
The University of Michigan has a distinguished group of Certified Athletic Trainers and team physicians who are responsible for determining whether or not a player is physically able to play. Our coaches have no influence or authority to make determinations if or when an injured player returns to competition. The health and welfare of our student-athletes is and will continue to be a top priority.”