American teenage sensation Coco Gauff prevailed over Sorana Cirstea in a thrilling 4-6, 6-3, 7-5 encounter at the Australian Open , to set up a meeting with defending champion Naomi Osaka.

The 15-year-old Gauff, who beat seven-time Grand Slam champion Venus Williams in the first round, was broken midway through the opening set as she struggled with errors off her forehand and a composed performance from her more experienced Romanian opponent.

Cirstea's levels, however, dipped at the start of the second set, allowing Gauff to capture an early break and force the match into a decider.

The final set was a gripping, evenly-matched affair as Gauff fought back from a break down to advance to the third round in two hours and seven minutes. 

Osaka offered a light-hearted apology to her racket sponsor for throwing a tantrum against Zheng Saisai at the as the defending champion overcame her frustrations to set up a third-round clash with Coco Gauff.

After dropping serve early in the second set, third seed Osaka threw her racket, slammed a ball into the court and gave her racket a kick for good measure before steadying the ship and earning a 6-2 6-4 win on a gusty day at Margaret Court Arena.

"I mean, my racket just magically flew out of my hand," Osaka told reporters with a smile.

"I couldn't control it. Sorry, Yonex."

World number one Ash Barty overcame high winds and a potentially tricky opponent to ease into the third round with a 6-1 6-4 victory over Polona Hercog.

After choking smoke from recent bushfires and torrential rains, players at Melbourne Park on Wednesday had to contend with swirling winds.

Nothing the Australian weather could throw at her was about to put Barty off her stride, however, as she continued her quest to become the first home-grown champion at the Australian Open since Chris O'Neil at Kooyong in 1978.

The French Open champion had given her compatriots a scare by losing her first set of the tournament on Monday but there was no repeat on day three of the championships as Barty raced through the first set in 24 minutes.

"The wind was a massive factor today, changed end to end dramatically," the 24-year-old told reporters after a second success on Rod Laver Arena.

"It was important for me to get a good start, and I was able to do that."

Caroline Wozniacki refused to be rushed into retirement as the former world number one fought back from 5-1 down in the first set to beat Ukraine's Dayana Yastremska 7-5 7-5.

The Dane had appeared set for an early exit at Melbourne Park, the scene of her only Grand Slam triumph in 2018, but rallied to win six games in a row against the 19-year-old to take the opening set.

Wozniacki, who is hanging up her racket after the tournament, made up for her lack of firepower with her trademark defensive skills, forcing the aggressive Yastremska into a series of errors.

"I was just, like, it's coming really fast at me. She's not making a lot of mistakes. I'm not getting depth on the ball," Wozniacki told reporters.