Novak Djokovic of Serbia hits a return during the singles group semifinal against Dominic Thiem of Austria at the ATP World Tour Finals 2020 in London, Britain, Nov. 21, 2020. (Xinhua/Han Yan)
In pics: singles group semifinal at ATP World Tour Finals 2020
Source: Xinhua| 2020-11-22 09:28:39|Editor: huaxia
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