'That was insane! I've got no words for how I'm feeling right now'.
Early in the third set, his opponent, Gilles Simon of France, also received a time violation, and cracked up Kyrgios by doing his own rendition of Rafa's routine.
Stanislas Wawrinka, the 2014 champion, progressed to the last 16 when John Isner retired in the second set, and Gael Monfils beat Ernests Gulbis 7-6 (7/2), 6-4, 6-3.
There is no love lost between the two, with 19-time Grand Slam victor Nadal accusing the Aussie hothead of lacking respect, while Kyrgios has described the Spaniard as "super salty". "He's arguably the greatest player ever". "He's an absolute warrior", Kyrgios said of Khachanov. "It's clear, of course, that when he does stuff that in my opinion is not good, I don't like".More news: Channing Tatum and Jessie J are back together after splitting before Christmas
Rafael Nadal gave a ball girl a bandana and a kiss to apologise for hitting her on the head with a tennis ball.
World number one Nadal raced through to the fourth round at Melbourne Park thanks to Saturday's ruthless 6-1 6-2 6-4 victory over fellow Spaniard Pablo Carreno Busta.
But he showed no signs of tiredness, racing through 6-1, 6-2, 6-4 in just 1hr 38mins in what he called his "best match of the tournament so far, without a doubt".
"I needed to improve", Nadal said, "and I improved". "Big difference between today and the previous days".
Nadal's romp over Carreno Busta set up a potential showdown next with Nick Kyrgios. "I have been serving well, starting to create damage with the forehand". "He's an incredible player".More news: Chicago Woman Hospitalized With Coronavirus, First Case Found in Australia
That was part of a chaotic Day 5 - including losses by Serena Williams and reigning champion Naomi Osaka, who was ousted by 15-year-old sensation Coco Gauff - and the trend continued on Day 6 on the women's side.
"At this level, everything can happen", two-time major champion Simona Halep said about all of the surprises, "so that's why sometimes I'm a little bit stressed".
Germany's Alexander Zverev dismissed Fernando Verdasco 6-2, 6-2, 6-4 to set up a last-16 clash with Russia's Andrey Rublev, who remained unbeaten this year with his win over David Goffin.
'He has won some incredible titles as well, so it's just the beginning for him.More news: Modi creating a Hindu nationalist state: American billionaire Soros