American gymnast Simone Biles has claimed she was sexually abused by a former USA Gymnastics team doctor who is due to be sentenced tomorrow (January 17).
Larry Nassar pleaded guilty to seven counts of criminal sexual conduct in November in Michigan, according to CNN.
Biles tweeted: "I, too, am one of the many survivors that was sexually abused by Larry Nassar.
"There are many reasons that I have been reluctant to share my story, but I know now that it is not my fault."
More than 140 sportswomen have claimed they were the subject of abuse by Nassar and some have claimed they were told to stay quiet about the incidents by USA Gymnastics itself.
USA Gymnastics has now said it is "heartbroken" by the matter and it will "continue to listen to our athletes and our members in our efforts of creating a culture of empowerment."
Nassar worked as the doctor for the US gymnastics team during four Olympic Games.
As part of his plea he admitted he sexually abused patients whilst pretending he was giving medical treatment. He also apologised and said what he did was like "a match that turned into a forest fire."
Some of his alleged victims are said to have been under the age of 13 at the time.
He is also set to face sentencing again later this month for three other counts of the same charge in another county.