Novak Djokovic’s son helps him warm up for Wimbledon match

Novak Djokovic’s son was seen helping his father warm up for his second round match against Jacob Fearnley at Wimbledon.

Nine-year-old Stefan took part in catching practice as the seven-time champion worked out with a medicine ball.

Djokovic faces Britain’s Fearnley - who won his opening match against Alejandro Moro Canas - on Thursday 4 July.

They will go toe-to-toe on centre court.

Fearnley will be the sixth British player to face Djokovic at Wimbledon, with Andy Murray the only one to beat him.