Biles is still dealing with what she calls the "twisties" and will be replaced by MyKayla Skinner.
Ahead of the finals for the vault and uneven bars, USA Gymnastics announced Saturday that Simone Biles will not participate in either event. Her status for the finals in the floor exercise and balance beam has yet to be determined.
Biles will be replaced by MyKayla Skinner in vault. Suni Lee will now be the only American to compete in uneven bars as France's Melanie de Jesus dos Santos will take Biles's spot in the event.
Biles has been perhaps the story of the Olympics after she withdrew from the team gymnastics final and the individual all-around event, putting her future participation in the Tokyo Games in jeopardy. She reported having, "no idea where (she) was in the air" after she pulled out midway through the team gymnastics final, and has dealt with what she's calling a "twisties" problem that prevents her from executing her moves with confidence.
Biles won six medals in 2016 in Rio—four gold, one silver and one bronze. Skinner, who did not compete in the 2016 Rio Games, dedicated her upcoming performance to Biles on Twitter:
Sign up for our free daily Olympics newsletter: Very Olympic Today. You'll catch up on the top stories, smaller events, things you may have missed while you were sleeping and links to the best writing from SI’s reporters on the ground in Tokyo.
More Olympics Coverage: