Zheng Qinwen hits a return during the women's singles first round match between Zheng Qinwen of China and Katerina Siniakova ...

LONDON, July 1 (Xinhua) -- Katerina Siniakova of the Czech Republic upset the fifth seed Zheng Qinwen of China in the women's singles first round at Wimbledon on Tuesday. With 10 women's doubles Grand ...