University of Missouri president resigns amid protests by student-athletes

The University of Missouri canceled all football activities on Sunday, hours after coach Gary Pinkel tweeted out support of his players, who refused to practice or play until school president Tim Wolfe is "no longer in office."

The issue centers on what some Missouri students believe is a slow and inconsequential response to some racially motivated incidents on the Columbia campus.

Wolfe announced his resignation on Monday morning.