Australian Open 2020: Rafa Nadal eases into possible clash with Nick Kyrgios

World No.1 Rafael Nadal has demolished fellow Spaniard Pablo Carreno Busta to win through to the fourth round of the Australian Open.

Nadal's 6-1 6-2 6-4 procession in less than two hours sets up a potential last-16 blockbuster with Aussie Nick Kyrgios on Monday.

The Australian world No.26 faces Karen Khachanov in his third-round match later on Saturday night.

Nadal didn't even face a break point, as he wiped Carreno Busta off Rod Laver Arena.

"My best match of the tournament so far, without a doubt," Nadal said. "It's true that when the conditions are a little bit warmer that helps a little bit.

"I did very well with my serve and started to hit some forehands."

Earlier, French 10th seed Gael Monfils defeated Latvian qualifier Ernests Gulbis 7-6 (7-2) 6-4 6-3.

Meanwhile, former finalist and reigning Wimbledon champion Simona Halep has charged into the second week of the Australian Open with a straight-sets win.

Halep took just over an hour to down unseeded Kazakh Yulia Putintseva 6-1 6-4 in Saturday's third-round match on Rod Laver Arena.

The Romanian fourth seed will meet 16th seed Elise Mertens, who dispatched American Catherine Bellis 6-1 6-7(5) 6-0, in the last 16 on Monday.