Novak Djokovic has been one of many players who have been heckled at the Australian Open - and the 10-time champion praised Danielle Collins' response to the rowdy crowd

Novak Djokovic has leapt to the defence of Australian Open villain Danielle Collins as crowd behaviour continues to cause issues at Melbourne Park. The 10-time champion battled a heckler, berated technology,

Novak Djokovic sought assistance from a trainer for some trouble breathing Friday night, and went back-and-forth with one particularly loud spectator, but when the ball was in play at the Australian Open against Tomas Machac,

Andy Murray has been coaching Novak Djokovic at the Australian Open this month and has been left surprised by one aspect of the Serb's behavior away from the court.

Novak Djokovic has suggested tennis needs to embrace change, after suspecting the younger generation may be struggling to maintain their focus during long Grand Slam matches. Djokovic clashed with a spectator giving him abuse during his hugely impressive straight-sets third round win against Tomas Machac,