Novak Djokovic found his groove to cruise through to the fourth round of the Australian Open on Friday, brushing aside 30th seed Tomas Martin Etcheverry with minimum fuss in his 100th match at the tournament.

The 10-time champion needed four sets to progress in each of his first two matches, against Dino Prizmic and Alexei Popyrin, but was never in trouble against the Argentine, cruising to a 6-3, 6-3, 7-6 (7/2) win.