Simone Biles says she was also abused by former USA team doctor

Olympic champion Simone Biles has come forward to say former USA Gymnastics team doctor Larry Nassar sexually abused her.

Simone is 1 out of over 140 women accusing Larry Nassar of sexual abuse. Nassar was the team doctor for USA Gymnastics through four Olympic Games, treating young hopefuls and gold medal winners. However, young girls in his care alleged that he sexually abused them. Many said they were pressured into silence by powerful institutions, including USA Gymnastics, the sport's governing body in the United States.

A day before Nassar's sentencing for sexually abusing girls in his care, American gymnast Simone Biles has come forward to say me, too.

"I, too, am one of the many survivors that was sexually abused by Larry Nassar," she said Monday afternoon in a Twitter post with the hashtag #MeToo.

"There are many reasons that I have been reluctant to share my story, but I know now that it is not my fault."

In response to Biles' statement, USA Gymnastics pledged "unwavering" support for Biles and others who have "courageously" come forward.

"USA Gymnastics is absolutely heartbroken, sorry and angry that Simone Biles or any of our athletes have been harmed by the horrific acts of Larry Nassar," the group said. "We are our athletes' advocates. USA Gymnastics will continue to listen to our athletes and our members in our efforts of creating a culture of empowerment with a relentless focus on athlete safety every single day."

Biles, now 20, joined the US Olympic gymnastics team in 2016, winning the individual all-around. Though her statement did not include specific allegations against Nassar, she described experiencing abuse under the guise of "special treatment," a recurring claim from Nassar's victims.

"This behavior is completely unacceptable, disgusting, and abusive, especially coming from someone I was TOLD to trust," she said Monday.

She, too, called out USA Gymnastics for its alleged role in allowing Nassar to prey on young girls for decades.

"For far too long I've asked myself 'Was I too naive? Was it my fault?' I now know the answer to those questions. No. No. It was not my fault. No, I will not and should not carry the guilt that belongs to Larry Nassar, USAG, and others.

"After hearing the brave stories of my friends and other survivors, I know that this horrific experience does not define me."

Nassar faces sentencing on Tuesday in Michigan state court after pleading guilty in November to seven counts of criminal sexual conduct. At his plea hearing, Nassar apologized and compared his crimes to "a match that turned into a forest fire."