American gymnast MyKayla Skinner wins silver in vault as replacement for Simone Biles
SIMONE OUT: Biles withdraws from floor exercise final; status for balance beam unclear.American Jade Carey appeared to trip while running for her first vault and instead of a Cheng was forced to perform a Yurchenko, scoring just 11.933.She followed by an Amanar (12.900), taking a penalty for two vaults from the same family, for 12.416 overall.