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Juan Martin del Potro of Argentina reacts during the men's final against Nikoloz Basilashvili of Georgia at the China Open tennis tournament in Beijing, capital of China on Oct. 7, 2018. (Xinhua/Jia Haocheng)
Juan Martin del Potro of Argentina reacts during the men's final against Nikoloz Basilashvili of Georgia at the China Open tennis tournament in Beijing, capital of China on Oct. 7, 2018. (Xinhua/Jia Haocheng)