It's an up-and-down day for favorites and the husband-and-wife duo of Gaël Monfils and Elina Svitolina wo their singles matches.

Poland's top tennis player, Iga Świątek, defeated Germany’s Eva Lys 6–0, 6–1 in the round of 16 at the Australian Open, easily advancing to the quarterfinals of the Grand Slam tournament in Melbourne.

The final match of the day saw American Learner Tien, playing in his first major outside of the U.S. Open, upset No. 5 seed Daniil Medvedev in a five-set classic, 6-3, 7-6, 6-7, 1-6, 7-6, that ended at 2:54 a.m. local time. Medvedev had reached three of the past four Australian Open finals, but could not fend off a ferocious Tien.

Eight women remain in the 2025 Australian Open, and three of them are Americans. That group of quarterfinalists is headlined by No. 3 seed Coco Gauff and includes No. 8 Emma Navarro and No. 19 Madison Keys. Gauff, 20, will look to continue her hot start to the season when she meets No. 11 Paula Badosa of Spain at 7:30 ET on Monday night.

"The World Anti-Doping Agency (WADA) confirms that following a thorough review, it will not lodge an appeal to the Court of Arbitration for Sport (CAS) in the case of Polish tennis player, Iga Świątek, who tested positive for trimetazidine (TMZ), a prohibited substance, in August 2024," the WADA said in a statement.

The 19-year-old American Learner Tien secured the biggest win of his young career in taking down No. 5 Daniil Medvedev

Poland’s Iga Świątek has entered the third round of the women’s singles competition at the Australian Open Grand Slam tennis tournament in Melbourne.

Here are the seeds for the Australian Open: Fourth round: Coco Gauff (3) vs. Naomi Osaka Quarterfinals: Iga Świątek (2) vs. Emma Navarro (8) Semifinals: Coco Gauff (3) vs. Aryna Sabalenka (1 ...

Medvedev had reached three of the past four Australian Open finals, but could not fend off a ferocious Tien. Świątek is a five-time Grand Slam champion with four French Open wins and the 2022 U ...

On Monday, January 20, 2025, the world number two Iga Świątek met the German Lucky Loser Eva Lys in the round of 16 of the Australian Open but it was a one sided affair in truth. Lys, who advanced

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