The 2025 Australian Open ramps up on Day 9 with more fourth round action. Iga Swiatek will continue her quest of winning the Australian Open for the first time in her career when she faces Eva Lys.

The last day of the fourth round is Day 9 of the Australian Open and here are some guesses on what might happen.

There are three American men aged 23 and under in the second week of a Grand Slam. That hasn't happened since 2003 ...

Jannik Sinner will face his trickiest test yet at the Australian Open when the defending champion battles Dane Holger Rune in ...

Jannik Sinner faces a tough challenge against Holger Rune in the Australian Open's fourth round, while Iga Swiatek aims to ...

Jannik Sinner will face his trickiest test yet at the Australian Open when the defending champion battles Dane Holger Rune in ...

Two of four American men still playing in Melbourne, Irvine native Tien, 19, and Aliso Viejo native Michelsen, 20, became ...

Swiatek, who agreed to accept a one-month suspension in a doping case late last year, owns four trophies from the French Open ...

The 2025 Australian Open runs from January 12-26. Tennis fans can follow Sports Illustrated's Serve on SI for all the most important news from the sport.

The 23-year-old from Sesto Pusteria prevailed in three sets and will face Holger Rune on Monday for a place in the ...

Monfils joined Roger Federer as the only men to achieve this age-defying feat, before Svitolina eliminated No. 4 seed Jasmine Paolini later in the day.