Bo Schembechler's son says he was sexually assaulted by Dr. Robert Anderson more than 50 years ago, and that when he told his dad, the University of Michigan's legendary football coach refused to hear about it and intervened to save the physician's job.

In an interview Wednesday with The Detroit News, Matthew Schembechler said he told his famous father in 1969 that Anderson had sexually molested him during a physical examination to play in a youth football league when he was 10 years old and weighed 60 pounds. The elder Schembechler, who was coaching his first season, went into a rage, told him he didn't want to hear about it and punched him in the chest so hard that he flew across the kitchen floor, his son said.

Now 62, Schembechler said that his mother invited then-UM Athletic Director Don Canham over to their house so he could tell Canham what had happened with Anderson. 

"(Canham) talked to Anderson and terminated him nearly immediately," said Schembechler, who lives in Ann Arbor. "Bo went to him and said, 'I need him, he is our team doctor, reinstate him,' and he did."

"It was the first time of many that I felt betrayed by Bo."

Schembechler is sharing his story at a Thursday press conference, where he plans to discuss how his father failed to protect him and others from Anderson, a longtime UM physician who is deceased but accused by more than 800 people of sexual assault.