By Shrivathsa Sridhar MELBOURNE (Reuters) -Defending champion Aryna Sabalenka overcame a wobbly display to reach the Australian Open fourth round while Novak Djokovic and Carlos Alcaraz were at their dazzling best on a warm but windy Friday at Melbourne Park.

Two-time defending Australian Open champion Aryna Sabalenka extended a few impressive streaks on Friday while becoming one of the first players to advance to the fourth round of the year's opening Grand Slam tournament.

"Every person that’s bought a ticket to come out here and heckle me ... it’s all going towards the Danielle Collins fund."

Danielle Collins of the United States provokes the crowd after defeating Destanee Aiava of Australia in the second round on Day 5 of the 2025 Australian Open at Melbourne Park on January 16, 2025 Danielle Collins got the last laugh — and a "big fat paycheck" — at the 2025 Australian Open.

Australian Open tennis star Danielle Collins faced brutal booing from the crowd after her 7-6 4-6 6-2 victory over Destanee Aiava on Thursday. The boos went up dramatically in volume after she trolled spectators for picking up a ‘big fat paycheck’ in her on-court interview at Kia Arena,

It was a year of frequent coaching changes for Raducanu. Having won the U.S. Open with Andrew Richardson, she replaced him with Torben Beltz just two months after winning the title. By April 2022, Beltz was out and Dimitry Tursunov, who had worked with Annett Kontaveit while she reached No. 2 in the world, was in.

Iga Swiatek rushed through her first set in 26 minutes and completed her 6-0, 6-2 second-round win over Rebecca Sramkova in an hour at the Australian Open

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,

Count Novak Djokovic as being in Danielle Collins’ corner. He thinks her response to booing fans at the Australian Open was absolutely fine — which should come as no surprise, given the way Djokovic gets into back-and-forths with hecklers at his matches,

Novak Djokovic stepped up a level in his Australian Open third round match against Tomas Machac, brushing the Czech aside 6-1, 6-4, 6-4 with a vintage performance to reach the second week at Melbourne Park for the 17th time.