Stonum started 25 of 36 career games for the Wolverines, catching 76 passes for 1,008 yards and six touchdowns. He also returned 62 kickoffs for 1,538 yards and holds the single-season kickoff return mark with 39 returns for 1,001 yards in 2009. Stonum redshirted in 2011.
"I appreciate everything the University of Michigan, Dave Brandon and Coach Hoke have done for me," said Stonum. "I look forward to continuing my football career down the road, but more importantly, right now I'm focused on graduating from Michigan this spring. I understand only I am responsible for my actions.
"I'm sad about how all of this turned out, but I completely understand. I love this school and my team and will miss them all greatly. But I'll always be a Wolverine. I know I have grown and matured as a person over the last nine months, and I will continue to learn and grow every day. I want to thank everyone for all of their support, and I hope they will support me in the future.