Defending champion Novak Djokovic trounced stand-in David Goffin 6-1, 6-2 for a clean sweep of his group at the ATP World Tour Finals on Thursday but spiced up a leisurely afternoon workout by picking a row with the umpire. While serving at 3-1 the Serb was given a time violation warning by chair umpire Fergus Murphy and let rip at the changeover. “You have no clue about the game,” an irate Djokovic told Murphy before turning to continue the debate with tournament director Tom Barnes who was hovering nearby. Off paceBelgium world number 11 Goffin had been hanging around all week in case of a withdrawal. “Yesterday I was feeling a bit like I was on holiday,” Goffin told reporters.

Source: Hindustan Times November 17, 2016 17:38 UTC