Roger Federer (L) of Switzerland enters the court before the singles group match against Novak Djokovic of Serbia at the ATP World Tour Finals 2019 in London, Britain on Nov. 14, 2019. (Xinhua/Han Yan)
Highlights of singles group matches at ATP World Tour Finals 2019
Source: Xinhua| 2019-11-15 09:13:06|Editor: yhy
