Gymnastics phenom Simone Biles will not defend her gold medal in the individual all-around tomorrow. The announcement comes the day after the American superstar withdrew from the team gymnastics final due to mental health reasons. The IOC released a statement today saying “After further medical evaluation, Simone Biles has withdrawn from the final individual all-around competition at the Tokyo Olympic Games, in order to focus on her mental health.” Biles claimed four gold medals in the 2016 Rio Games.