Petra Kvitova advances to women's singles semifinal at China Open

Petra Kvitova of the Czech Repubic reacts during the women's singles quarter-final match against her compatriot Barbora Strycova at the China Open tennis tournament in Beijing on Oct. 6, 2017. Petra Kvitova won 2-0 and advanced to the semifinal. (Xinhua/Zhang Chenlin)