Biles likely hit 'reset' button - psychologist

Simone Biles likely hit the "reset" button and got back to basics before feeling ready to return to action at the Tokyo Olympics where she took a pause to focus on her mental health, a sports psychologist said on Monday.

Biles sent a shock through the Olympics when she withdrew from last week's team competition in Tokyo due to what she described as a case of the "twisties," where gymnasts are disoriented during their gravity-defying sequences. The 24-year-old American, whose decision came after she had trouble with the dismount on her vault, then withdrew from the other four individual finals she qualified for but will defend her gold medal in Tuesday's balance beam final.