
Sabine Lisicki of Germany hits a return during the women's singles first round match against Zhang Shuai of China at the 2017 US Open tennis tournament in New York, the United States, Aug. 30, 2017. (Xinhua/Wang Ying)

Sabine Lisicki of Germany hits a return during the women's singles first round match against Zhang Shuai of China at the 2017 US Open tennis tournament in New York, the United States, Aug. 30, 2017. (Xinhua/Wang Ying)