Wu Yibing of China hits a return during the men's singles second round match against Alex de Minaur of Australia at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Wang Yafan of China hits a return during the women's singles second round match against Katie Boulter of Britain at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Kaia Kanepi of Estonia hits a return during the women's singles second round match against Zheng Qinwen of China at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Alex de Minaur of Australia hits a return during the men's singles second round match against Wu Yibing of China at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Wang Yafan of China hits a return during the women's singles second round match against Katie Boulter of Britain at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Katie Boulter of Britain hits a return during the women's singles second round match against Wang Yafan of China at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Kaia Kanepi of Estonia hits a return during the women's singles second round match against Zheng Qinwen of China at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Wang Yafan of China hits a return during the women's singles second round match against Katie Boulter of Britain at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Zheng Qinwen of China celebrates after winning the women's singles second round match against Kaia Kanepi of Estonia at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Wu Yibing of China hits a return during the men's singles second round match against Alex de Minaur of Australia at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Zheng Qinwen of China hits a return during the women's singles second round match against Kaia Kanepi of Estonia at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Wu Yibing of China hits a return during the men's singles second round match against Alex de Minaur of Australia at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Zheng Qinwen of China hits a return during the women's singles second round match against Kaia Kanepi of Estonia at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Alex de Minaur of Australia hits a return during the men's singles second round match against Wu Yibing of China at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Kaia Kanepi of Estonia hits a return during the women's singles second round match against Zheng Qinwen of China at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Wang Yafan of China hits a return during the women's singles second round match against Katie Boulter of Britain at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Zheng Qinwen of China hits a return during the women's singles second round match against Kaia Kanepi of Estonia at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Katie Boulter of Britain hits a return during the women's singles second round match against Wang Yafan of China at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)
Zheng Qinwen of China hits a return during the women's singles second round match against Kaia Kanepi of Estonia at the 2023 US Open tennis championships in New York, the United States, Aug. 31, 2023. (Xinhua/Liu Jie)