Novak Djokovic has overcome some trouble breathing and played quite well for a straight-set victory over 26th-seeded Tomas Machac to reach the fourth round at the Australian Open.

Tomas Machac (No. 25 in the world) takes on Novak Djokovic (No. 7) in the Round of 32 at the Australian Open.Djokovic defeated Jaime Faria 6-1, 6-7, 6-3, 6-2 on Tuesday in the Round

Novak Djokovic called out a drunk Australian Open heckler following his 6-1 6-4 6-4 win over Tomas Machac in the third round on Friday. Djokovic cruised past the 26th-seed Czech star in straight sets to set up a fourth-round showdown with 24th-seed Jiri Lehecka at Melbourne Park.