Djokovic ready to defend Wimbledon trophy
Xinhua
1561016452000
Novak Djokovic of Serbia returns the ball during an open training session in Belgrade, Serbia, June 19, 2019. (Xinhua/Predrag Milosavljevic)
Novak Djokovic of Serbia speaks to the media during an open training session in Belgrade, Serbia, June 19, 2019. (Xinhua/Predrag Milosavljevic)