Gymnast Simone Biles withdrew from the individual all-around competition at the Tokyo Olympics on Wednesday, a day after she shocked the world by pulling out of the team event and put a sharp focus on mental health at the Games.

American Biles will be evaluated to see if she can take part in the individual apparatus competitions, USA Gymnastics said in a statement on Twitter.

Biles made the decision so she "can focus on her mental health," the organization said, adding that it supported her "wholeheartedly."