
Zheng Saisai of China hits a return during the women's singles quarterfinal match against Aryna Sabalenka of Belarus at the 2020 WTA Qatar Open in Doha, Qatar, Feb. 27, 2020. (Photo by Nikku/Xinhua)

Zheng Saisai of China hits a return during the women's singles quarterfinal match against Aryna Sabalenka of Belarus at the 2020 WTA Qatar Open in Doha, Qatar, Feb. 27, 2020. (Photo by Nikku/Xinhua)