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Naomi Osaka of Japan serves during the women's singles quarterfinal match against Zhang Shuai of China at China Open tennis tournament in Beijing, China, Oct. 5, 2018. Naomi Osaka won 2-1. (Xinhua/Kong Hui)
Naomi Osaka of Japan serves during the women's singles quarterfinal match against Zhang Shuai of China at China Open tennis tournament in Beijing, China, Oct. 5, 2018. Naomi Osaka won 2-1. (Xinhua/Kong Hui)