Daniil Medvedev hits a return during men's singles first round match between Daniil Medvedev of Russia and Stefan Kozlov of the United States at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Daniil Medvedev serves during men's singles first round match between Daniil Medvedev of Russia and Stefan Kozlov of the United States at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Stefan Kozlov serves during men's singles first round match between Daniil Medvedev of Russia and Stefan Kozlov of the United States at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Stefan Kozlov hits a return during men's singles first round match between Daniil Medvedev of Russia and Stefan Kozlov of the United States at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Daniil Medvedev hits a return during men's singles first round match between Daniil Medvedev of Russia and Stefan Kozlov of the United States at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Daniil Medvedev reacts during men's singles first round match between Daniil Medvedev of Russia and Stefan Kozlov of the United States at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Zhang Zhizhen hits a return during the men's singles first round match between Zhang Zhizhen of China and Tim van Rijthoven of the Netherlands at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Tim van Rijthoven hits a return during the men's singles first round match between Zhang Zhizhen of China and Tim van Rijthoven of the Netherlands at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Zhang Zhizhen hits a return during the men's singles first round match between Zhang Zhizhen of China and Tim van Rijthoven of the Netherlands at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Zhang Zhizhen reacts during the men's singles first round match between Zhang Zhizhen of China and Tim van Rijthoven of the Netherlands at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Wu Yibing of China hits a return during the men's singles first round match between Wu Yibing of China and Nikoloz Basilashvili of Georgia at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Wu Yibing of China hits a return during the men's singles first round match between Wu Yibing of China and Nikoloz Basilashvili of Georgia at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Nikoloz Basilashvili of Georgia hits a return during the men's singles first round match between Wu Yibing of China and Nikoloz Basilashvili of Georgia at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Wu Yibing of China celebrates after the men's singles first round match between Wu Yibing of China and Nikoloz Basilashvili of Georgia at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Wu Yibing of China celebrates after the men's singles first round match between Wu Yibing of China and Nikoloz Basilashvili of Georgia at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Wang Xiyu of China serves during the women's singles first round match against Diane Parry of France at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Wang Xiyu of China hits a return during the women's singles first round match against Diane Parry of France at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Wang Xiyu of China hits a return during the women's singles first round match against Diane Parry of France at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Diane Parry of France hits a return during the women's singles first round match against Wang Xiyu of China at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Wang Xiyu of China celebrates after winning the women's singles first round match against Diane Parry of France at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Zhang Shuai of China hits a return during the women's singles first round match against Jil Teichmann of Switzerland at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Jil Teichmann of Switzerland hits a return during the women's singles first round match against Zhang Shuai of China at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Zhang Shuai of China hits a return during the women's singles first round match against Jil Teichmann of Switzerland at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Zhang Shuai of China hits a return during the women's singles first round match against Jil Teichmann of Switzerland at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Zhang Shuai of China leaves the court after the women's singles first round match against Jil Teichmann of Switzerland at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Serena Williams of the United States hits a return during the women's singles first round match against Danka Kovinic of Montenegro at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Danka Kovinic of Montenegro hits a return during the women's singles first round match against Serena Williams of the United States at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Danka Kovinic of Montenegro hits a return during the women's singles first round match against Serena Williams of the United States at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)
Serena Williams of the United States serves during the women's singles first round match against Danka Kovinic of Montenegro at the 2022 US Open tennis championships in New York, the United States, Aug. 29, 2022. (Xinhua/Liu Jie)