
Angelique Kerber of Germany reacts during the women's singles second round match against Kirstern Flipkens of Belgium at the Championship Wimbledon 2017 in London, Britain, on July 6, 2017. Kerber won 2-0. (Xinhua/Han Yan)

Angelique Kerber of Germany reacts during the women's singles second round match against Kirstern Flipkens of Belgium at the Championship Wimbledon 2017 in London, Britain, on July 6, 2017. Kerber won 2-0. (Xinhua/Han Yan)