Purdue's Chris Kramer got the ultimate revenge against Michigan's Manny Harris.
Harris was ejected early in the second half on Saturday after hitting Kramer in the nose with an elbow and temporarily knocking him out.
The 16th-ranked Boilermakers (17-4, 6-2) then rallied behind their captain for a 67-49 victory in West Lafayette, Ind., outscoring Michigan 40-20 after the foul by the Wolverines' top scorer.
"We don't retaliate, we just get 'W's," Kramer said.
Kramer remained on the floor after the hit, and trainers tended to him for several minutes. Kramer said the team doctor believed his nose is broken.
"I was out, then I woke up and there was a pool of blood around me," he said.
As Kramer stood near halfcourt with a bloody towel over his face, he raised his right arm several times to fire up the crowd before leaving the court for treatment.
Michigan coach John Beilein told the referee he thought an ejection was unwarranted.