Wang Manyu of China competes during the women's singles round of 16 match against Han Ying of Germany at the WTT Cup Finals in Xinxiang, central China's Henan Province, Oct. 27, 2022. (Photo by Gao Zhiyong/Xinhua)

Dimitrij Ovtcharov of Germany serves during the men's singles round of 16 match against Chuang Chih-Yuan of Chinese Taipei at the WTT Cup Finals in Xinxiang, central China's Henan Province, Oct. 27, 2022. (Photo by Gao Zhiyong/Xinhua)

Doo Hoi Kem of China's Hong Kong serves during the women's singles round of 16 match against Adriana Diaz of Puerto Rico at the WTT Cup Finals in Xinxiang, central China's Henan Province, Oct. 27, 2022. (Photo by Gao Zhiyong/Xinhua)