Michigan State coach Mark Dantonio is out of the hospital, less than three days after having a mild heart attack.

The athletic department confirmed that Dantonio was released around 3 p.m. Tuesday. He was hospitalized shortly after the Spartans beat Notre Dame 34-31 in overtime Saturday night on a fake field goal that worked for a touchdown.

Offensive coordinator Don Treadwell is taking over in Dantonio's indefinite absence for No. 25 Michigan State, which faces Northern Colorado on Saturday. Treadwell said earlier Tuesday that Dantonio was doing better, but at that point he hadn't been released yet.