MELBOURNE, Australia (AP) — First came the medical timeouts, one each for Jannik Sinner and Holger Rune with the temperature above 90 degrees Fahrenheit (32 Celsius) at the Australian Open.

Day nine of the Australian Open saw Lorenzo Sonego and Elina Svitolina advance to the quarter-finals with impressive wins. Jannik Sinner overcame a medical timeout to beat Holger Rune, while Madison Keys stunned Elena Rybakina.

Elina Svitolina advances to Australian Open quarterfinals, to face Madison Keys after defeating Veronika Kudermetova.

World No.1 and defending champion Jannik Sinner, Iga Swiatek, Elina Svitolina, Elena Rybakina and other big players will be in action on Day 9 of the hard court major at the Melbourne Park.

Elina Svitolina delivered a stunning first-set comeback before overwhelming Veronika Kudermetova to reach the Australian Open quarterfinals on Monday, but the Ukrainian did not shake hands with her Russian opponent.

Elina Svitolina of Ukraine gestures during ... Jannik Sinner of Italy reacts during his fourth round match against Holger Rune of Denmark at the Australian Open tennis championship in Melbourne ...

Defending champion Jannik Sinner has moved into the quarterfinals at the Australian Open after beating Holger Rune during a match slowed down by medical timeouts for each player and a delay because the net got knocked loose.

MELBOURNE, Australia (AP) — First came the medical timeouts, one each for Jannik Sinner and Holger Rune with the ... and now plays Elina Svitolina, a 6-4, 6-1 winner against Veronika Kudermetova.

The last of the Australian Open men's quarterfinals takes place in the wee hours of Wednesday morning, in the United States.

Cleaning out the notes app and notebook, wrapping up a rollicking 2025 Australian Open …A reminder: If you want these columns and the weekly tennis mailbags sent directly to your email, just DM me.1.