A leading tennis expert had pinpointed the benefits that Novak Djokovic was enjoying with Andy Murray as his coach before his shock retirement from the Australian Open on Friday. Djokovic called it quits after dropping the first set against Alexander Zverev,

As Novak Djokovic produced a performance up there with the best of his wins over former rivals Roger Federer and Rafael Nadal, he turned to Sir Andy Murray in celebration.

The quarterfinals match between Novak Djokovic and Carlos Alcaraz at the Australian Open on Tuesday was one for the books. Djokovic ended up coming back from one set down to beat the young star 4-6, 6-4,