Mike Hart – a former star running back at Michigan and now a top assistant – has left the field during Saturday’s game in Bloomington.

According to the FOX broadcast and sideline reporter Jenny Taft, Hart went down on the sideline during a commercial break following an Indiana touchdown. It is unclear what happened but Michigan officials told Taft “nothing like this has ever happened” with Hart previously.

Hart appeared to be conscious but was on a cart as he left the field to the locker room.

Stay tuned for more details.