In an emotional interview with 60 Minutes, Raisman, 23, alleged that Nassar often touched her inappropriately and made her feel uncomfortable. In the wake of the news, athletes including Simon Biles and Dominique Moceanu have sent messages of support to Raisman.
“You inspire me day in and day out @Aly_Raisman,” Biles tweeted on Monday. “I’ll always be in your corner supporting you. you are so brave and courageous! keep your chin up! All my love xoxo.”
Moceanu, who is retired, praised Raisman on Twitter, writing, “I stand with you and support you. I’m sorry so you were harmed [sic]. It never should’ve happened, but you know you have my support. Chin up. Change IS upon us. I do believe that. #IStandwithYou.”
Raisman writes about the ordeal in her new book, Fierce, explaining that she was 15 years old when she was first treated by Nassar. She told PEOPLE that, for a long time, she didn’t understand that she was being abused.
“I didn’t think I was being molested. I didn’t know,” Raisman said. “He was a doctor. I never would have thought that a doctor would misuse his power so much.”
As Raisman continues to speak about her abuse, several stars have praised the Raisman for her courage.
“Thank you @Aly_Raisman for sharing your story to help give a voice to other women,” actress Blake Lively tweeted. “Thank you @DrLaPook for bringing attention to such a prevalent issue.”
In her autobiography, which releases Tuesday, Raisman writes that she became suspicious when she realized Nassar’s methods were different from other doctors and trainers. Soon, she adds, she learned from fellow athletes that they had been abused too.
Raisman’s claims come just weeks after her fellow Fierce Fiver McKayla Maroney accused Nassar of abuse. Maroney, 21, alleges that she was sexually abused by Nassar for years beginning when she was 13 years old.
“My teammate McKayla Maroney, she’s like a sister. We are so close,” Raisman tells PEOPLE. “We’ve been through so much. We’ve been on top of the podium together, and unfortunately molested by the same person.
“I’m very lucky that I have someone that understands.”
More than 100 women, including several former athletes, have accused Nassar of sexual abuse. He was fired by USA Gymnastics in 2015 after working with the organization since 1986, and had been its national medical coordinator since 1996, The New York Times reported. He was fired from Michigan State last year.
Nassar is in jail now, facing several charges related to the alleged abuse. In July, he pleaded guilty to three child pornography charges in federal court, ABC News reported via ESPN. In exchange for Nassar’s guilty plea, U.S. prosecutors have agreed not to pursue charges in two additional incidents of alleged sexual crimes with minors. He is scheduled to be sentenced in federal court on Dec. 7, according to the Lansing State Journal.
Lawyers for Nassar declined PEOPLE’s request for comment.