HIGHLIGHTS-Australian Open 2023: Day four on Thursday

Highlights of the fourth day of the Australian Open at Melbourne Park on Thursday, all times local (GMT +11): 1321 VOLYNETS OUSTS KUDERMETOVA

Katie Volynets scored the biggest win of her career with a 6-4 2-6 6-2 upset of ninth seed Veronika Kudermetova, and became the first American qualifier to reach the women's singles third round in Melbourne since Lindsay Davenport in 1993. "I literally have the chills," Volynets said. "Suddenly, you get match point and it's like 'wow I've got match point against the ninth seed'. You just start going for it and let whatever happens happen."

1254 STOSUR BOWS OUT OF WOMEN'S DOUBLES A tearful Sam Stosur received a standing ovation from the crowd after losing in the first round of the women's doubles with Alize Cornet. The 38-year-old major winner has said she will retire after the Australian Open.

Stosur still has the mixed doubles to come, where she will partner fellow Australian Matt Ebden. "It's a bit bittersweet but thank you all for coming out today. It's been really special," said Stosur.

"I love playing, I love competing. But you get to a point where the other things become a little more difficult. I've loved being able to do everything I've been able to do." READ MORE

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1244 SABALENKA POWERS INTO NEXT ROUND Fifth seed Aryna Sabalenka swatted aside Shelby Rogers 6-3 6-1 to reach the third round as the big-hitting Belarusian, who warmed up for the year's first major with the Adelaide title, found her rhythm after an error-prone start to the match.

"She always plays fast and puts me under pressure. I expected a great level from her and that's why I had to stay focused to win this in two sets," Sabalenka said. 1114 PLAY UNDERWAY AT MELBOURNE PARK

Second-round action began as scheduled on a pleasant fourth day at the year's first Grand Slam, after extreme heat and persistent rain caused lengthy delays over the past two days. The weather forecast looks good, with a high of 19 degrees Celsius (66.2 degrees Fahrenheit) and only a slight chance of showers in the morning.

Men's second seed Casper Ruud is in action against American Jenson Brooksby after Aryna Sabalenka opens proceedings against Shelby Rogers at Rod Laver Arena. Title favourite Novak Djokovic plays in the evening.

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