Novak Djokovic was in a jovial mood after booking his spot in the fourth round of the Australian Open - even offering to take a fan out for a drink as his wife Jelena laughed

Listen to the Australian Open on 5 Sports Extra and BBC Sounds and follow on the BBC Sport Website Andrea Petkovic, Ryan Harrison and Annabel Croft are guests across the programme. Tennis Correspondent Russell Fuller, along with Gigi Salmon and Annabel Croft are commentating live from the Rod Laver Arena.

An injured Novak Djokovic has quit after dropping the first set of his Australian Open semifinal against Alexander Zverev

Novak Djokovic was forced to retire from his semifinal match at the Australian Open, which resulted in fans booing him as he left the court.

Novak Djokovic says he will return to the Australian Open next year if he is "fit, healthy and motivated" after retiring from his semi-final with injury.