Simone Biles

Biles, a star member of the USA's successful gymnastics team at the 2016 Rio Olympic Games, on Monday became the latest athlete to state that she was molested by Nassar.

Nassar was last month sentenced to 60 years in a federal prison for having child sex abuse images on his computer.

He is also awaiting sentencing after pleading guilty to seven counts of criminal sexual conduct in November.

"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."

Athletes affected include tennis players Venus and Serena Williams and teenage gymnast Simone Biles.

A group calling itself "Fancy Bears" claimed responsibility for the hack of a Wada database.

After the leak, Ms Biles said she had long been taking medicine for Attention Deficit Hyperactivity Disorder.

The hacker group had accused her of taking an "illicit psycho-stimulant", but she said she had "always followed the rules".

Biles, 19, won four gold medals in Rio, five in total, as a member of the Games' best gymnastics team.

"It's an incredible honor to be selected as the flag bearer by my Team USA teammates," Biles said in a statement.

Sunday will mark the second time a gymnast has carried the Stars and Stripes into an opening or closing ceremony. The first was Alfred Jochim in 1936. A silver medalist in 1932, he carried the banner into the opening ceremony at Berlin.

While Dancing With the Stars has been interested in having Simone Biles as one of its season 23 contestants, the Olympic champion is setting the record straight, saying her busy schedule could prevent her from joining the ABC reality competition.

As if Olympic sensation Simone Biles didn't already have plenty of reasons to smile -- like maybe her four gold medals and one bronze -- she's got another reason now.

Actor Zac Efron -- fulfilling teenage crush goals everywhere -- popped over to Rio to find Biles and plant a surprise smacker on her.

"He kissed me on the cheek, just letting y'all know," Biles shared in a tweet.

Everyone wants a little time with the pint-sized wonder, who cemented her position as the greatest gymnast ever. That includes celebrity heartthrob Zac Efron. 

Biles met the actor who is popular for his roles in films such as "High School Musical" and "That Awkward Moment." The two met up up backstage Tuesday, following Biles' historic run. They hit it off immediately, exchanging selfies and even a couple smooches. 

Biles returned the favor, planting a couple on the movie star.

Biles, 19, had been tipped to scoop a record five golds at Rio, but lost her footing after a somersault and had to grab the beam with both hands to save herself from falling off.

She still claimed bronze, but it was 24-year-old Wevers who won the top prize - the Netherlands' first women's individual gymnastics gold.

Biles' fellow American, Laurie Hernandez, won silver.

Biles, a double world champion on the beam, will be back tomorrow morning when she will be favourite to win the floor exercise.