Pat Graham added 16 points for Indiana (12-1), which won its 10th consecutive game.
But Pat Graham came off the bench to score 5 points and spark a 12-0 Indiana run in the next three minutes.
The Hoosiers' starting lineup included Pat Graham, who had been limited to 12 games and three starts because of a broken bone in his left foot.
Pat Graham sealed the victory with two free throws with 18 seconds left.
Damon Bailey and Pat Graham, two seniors, led Indiana in the overtime.
Knight had taken a similar stance over Pat Graham, who is white.
But Indiana lost Pat Graham, who had 14 points.
A big reason we came back tonight was the play of Pat Graham.
"I've been spumoni-less for a whole year," said Pat Graham, who works at a downtown car dealership.
Pat Graham is an American photographer specializing in indie-punk bands, with whom he often tours.