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Zheng Saisai of China competes during the singles second round match against Dayana Yastremska of Ukraine at 2018 Hong Kong Tennis Open in Hong Kong, China, Oct. 10, 2018. Zheng Saisai lost 0-2. (Xinhua/Lo Ping Fai)
Zheng Saisai of China competes during the singles second round match against Dayana Yastremska of Ukraine at 2018 Hong Kong Tennis Open in Hong Kong, China, Oct. 10, 2018. Zheng Saisai lost 0-2. (Xinhua/Lo Ping Fai)