Novak Djokovic warned for unsportsmanlike behaviour
Novak Djokovic was warned for unsportsmanlike behaviour during his opening win over Austriaās Dominic Thiem in the ATP World Tour Finals in London on Sunday.
The Serbian world No 2 smacked a ball angrily towards his backroom staff seated courtside after losing the first set on tie-break that fortunately went over them and into an area that contained no seating.
It was the third instance this year that Djokovic has lost his composure on theĀ
"You guys are unbelievable. You're always picking