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.

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.

"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.

Former Wimbledon champion Elena Rybakina joined Swiatek in the last 16 with a 6-3 6-4 win over Dayana Yastremska, but only after receiving treatment on her back, while eighth seed Emma Navarro and ninth seed Daria Kasatkina also advanced.

Daniil Medvedev’s meltdown and Danielle Collins’s squabble with the Aussie fans made headlines, while Aryna Sabalenka and Iga Świątek keep rolling.

Day 5 of the Australian Open was a good day for the higher seeds in the men's and women's draws, with big names advancing to the third round. Men's No. 1 seed Jannik Sinner stumbled early against ...

No. 2 seed Iga Świątek had an easy time advancing to the fourth round of the Australian Open with a 6-1, 6-0 win over Emma Raducanu on Saturday. The match was expected to be competitive as it ...

Iga Świątek's run hasn't been without controversy, including one call in her quarter-final win over Emma Navarro that left the tennis world scratching their heads.

LAS VEGAS (AP) — Top-ranked Jannik Sinner, No. 2 Alexander Zverev, women's No. 1 Aryna Sabalenka and former No. 1 Naomi Osaka will play exhibition matches March 1-2 in Las Vegas. The women will compete March 1, but the men's format hasn't been determined. Fourth-ranked Taylor Fritz and No. 9 Tommy Paul also will compete in the event.

More remarkably: Djokovic has now advanced to his fiftieth major semifinal, after beating Alcaraz in a grueling four-set match that went to about 1:00 am local time in Melbourne. That number sets yet another Djokovic record in men’s tennis, further cementing the athlete’s legendary status.

MELBOURNE, Australia (AP) — Novak Djokovic beats Carlos Alcaraz 4-6, 6-4, 6-3, 6-4 in the Australian Open quarterfinals. True to form, Novak Djokovic's non-tennis behavior has made headlines.

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. Sofia Kenin in 2020 was the last American woman to hoist the trophy in Melbourne.