The Michigan Wolverines football staff made mistakes due to a "serious lack of communication" while dealing with quarterback Shane Morris' head injury, athletic director Dave Brandon said.

Brandon released a statement shortly before 1 a.m. ET Tuesday morning outlining a two-day investigation he conducted into how Michigan's football medical personnel and its coaching staff handled a "probable mild concussion" for its sophomore quarterback.

"Unfortunately, this confusion created a circumstance that was not in the best interest of one of our student-athletes," Brandon said. "I sincerely apologize for the mistakes that were made. We have to learn from this situation, and moving forward, we will make important changes so we can fully live up to our shared goal of putting student-athlete safety first."

Morris remained on the field for one play of Saturday's 30-14 loss to Minnesota after displaying concussion symptoms in the fourth quarter. The sophomore stumbled and needed the help of his teammates to stay on his feet after a helmet-to-helmet hit knocked him to the ground.

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