Before Tonya learned the truth about Nancy's assault, she says she was scared for her own safety.
"I felt hurt for her and scared because I didn't know what was going on," she says.
"Are you saying that, at the time, you thought somebody might come along and whack you in the knees?" Oprah says.
"Yes," Tonya says.
After her ex-husband was implicated, Tonya says she approached Nancy at the Olympics and apologized. "I apologized for being involved with the wrong type of people," she says. "I wished her the best."