ESPN has more information on this developing story and some quotes from Michigan AD David Brandon.

"The ball is in their court because they've triggered the three-game notice," he said. "We'll play them next year at Michigan Stadium for the last time in a while -- it appears -- and we'll make our last scheduled trip to South Bend in 2014. There will likely be nothing on the board for five years after that. Beyond that, I don't know what will happen."

This news solidifies the reality that there will be no football games played between Notre Dame and Michigan from 2014 to 2019 and the future after that is uncertain.