Highlights of 2018 Mubadala World Tennis Championship

Hyeon Chung of South Korea serves during the match against Dominic Thiem of Austria at 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)