Australian Open 2025 champion Madison Keys overcame top two seeds, including the defending champion, to win her first ever Grand Slam title.

Australian Open women's champion Madison Keys returned to her career-best ranking on Monday and joins three other American women in the WTA top 10, while men's champion Jannik Sinner maintained his significant lead atop the ATP list.

MELBOURNE, Australia — Things are somewhat out of control at the Australian Open this year, and that’s got only a little to do with the results on the courts.

Copyright 2025 The Associated Press. All Rights Reserved. Daniil Medvedev of Russia reacts during his second round match against Learner Tien of the U.S. at the ...

Learner Tien has become the youngest American man to reach the Australian Open's third round since Pete Sampras in 1990.

Learner Tien pulled off the most stunning upset of the 2025 Australian Open on Thursday. The American qualifier took down three-time Australian Open

American teen Learner Tien pulled off the biggest upset so far at the 2025 Australian Open, ousting Russian Daniil Medvedev -- the No. 5 player in the world -- in a 4-hour, 49-minute thriller at Margaret Court Arena.

The 2025 Australian Open has been a bit wonky for U.S. viewers thanks to the time difference in The Land Down Under. Tonight's women's final match between Sabalenka and American tennis star Madison Keys will begin at 3:30 a.m. ET tonight (or technically, early tomorrow, Jan. 25).

There are six American men and five American women in the third round. Tommy Paul, Coco Gauff and Jessica Pegula all play Thursday. No. 17 Frances Tiafoe, a two-time U.S. Open semifinalist, was upset by Hungary’s Fábián Marozsán in five sets in the second round.

Ben Shelton and Madison Keys achieved a joint milestone for American tennis at the Australian Open, one last accomplished by Andy Roddick and Serena Williams.

MELBOURNE, Australia -- World No. 5 Daniil Medvedev has been fined more than US $76,000 for two separate incidents which occurred during his first and second-round matches at the Australian Open ...