Women's singles quarterfinal match at 2019 US Open: Wang Qiang of China vs. Serena Williams of U.S.

Wang Qiang hits a return during the women's singles quarterfinal match between Wang Qiang of China and Serena Williams of the United States at the 2019 US Open in New York, the United States, Sept. 3, 2019. (Xinhua/Li Muzi)