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Hyeon Chung of South Korea returns to Dominic Thiem of Austria during the 2018 Mubadala World Tennis Championship in Abu Dhabi, the United Arab Emirates (UAE), on Dec. 28, 2018. Hyeon Chung won 2-0. (Xinhua/Mahmoud Khaled)
Hyeon Chung of South Korea returns to Dominic Thiem of Austria during the 2018 Mubadala World Tennis Championship in Abu Dhabi, the United Arab Emirates (UAE), on Dec. 28, 2018. Hyeon Chung won 2-0. (Xinhua/Mahmoud Khaled)