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Dominic Thiem of Austria returns the ball during the men's singles final match against Stefanos Tsitsipas of Greece at 2019 China Open tennis tournament in Beijing, capital of China, Oct. 6, 2019. (Xinhua/Li Yibo)
Dominic Thiem of Austria returns the ball during the men's singles final match against Stefanos Tsitsipas of Greece at 2019 China Open tennis tournament in Beijing, capital of China, Oct. 6, 2019. (Xinhua/Li Yibo)