Novak Djokovic of Serbia serves during the singles group match against Alexander Zverev of Germany at the ATP World Tour Finals 2020 in London, Britain, on Nov. 20, 2020. (Xinhua/Han Yan)
Highlights of ATP World Tour Finals 2020 day 6
Source: Xinhua| 2020-11-21 09:42:55|Editor: huaxia
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