Highlights of 2018 Mubadala World Tennis Championship

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