The Russian Olympic Committee (ROC) ended the United States women's pursuit of a third straight team gymnastics gold medal on Tuesday.
Biles withdrew during the opening routine on vault with what USA Gymnastics called "a medical issue." The four-time gold medalist left the floor with a trainer and returned with a wrapped right leg minutes later.
The U.S. team—made up of Biles, Sunisa Lee, Grace McCallum and Jordan Chiles—was never able to overcome an early ROC lead established after Biles bailed on performing an Amanar vault in mid-air. Biles completed a Yurchenko 1 1/2 twist instead with a hard landing and withdrew before the uneven bars.