American Star, Simone Biles, Is OUT Of This Year's Olympics

 Simone Biles withdrew from the women’s artistic gymnastics final, just moments after posting the worst vault score of her career.

Biles, the most successful US gymnast of all time, left the arena after the first discipline with her coach.

She returned moments later but pulled out of the uneven bars, the second apparatus the USA were attempting with reserve Jordan Chiles stepping up.

Biles, who had heavy strapping on her foot, then put her tracksuit on with her night over moments later.

Concerns were initially raised after she posted the worst score out of the six competitors on the vault with a 13.766.

Typically a master on the vault, Biles, a four-time Olympic gold medalist, failed to stick the landing. She had posted the best score during the qualifiers.

Simone explained to her teammates that she was out of the competition, hugging them and wishing them the best for the night.

American commentator Hoda Kotb told NBC: ‘Simone explained to her team-mates that she was out of the competition.’

Retired American gymnast MyKayla Skinner added: ‘My heart broke for her. I can’t imagine what she’s going through right now.

‘I’m not sure if she’s hurt something recently.’