China's Zhang Shuai returns the ball during the women's singles second round match against Alison Riske of the United States at the China Open tennis tournament in Beijing, capital of China, Oct. 4, 2016. (Xinhua/Ju Huanzong)
China's Zhang Shuai returns the ball during the women's singles second round match against Alison Riske of the United States at the China Open tennis tournament in Beijing, capital of China, Oct. 4, 2016. (Xinhua/Ju Huanzong)
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