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.

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.

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.

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 ...

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.

Madison Keys pulled off a stunning victory, while Jannik Sinner charged to a convincing title defense. Plus, Paula Badosa and Ben Shelton impressed Down Under.

Concerned' Djokovic prepares for Australian Open semi-final after Sinner demolishes De Minaur - live - Sinner booked his place in the semi-finals with a 6-3 6-2 6-1 victory over Australia’s De Minaur

Highlights of the 11th day of the Australian Open on Wednesday (times GMT):1116 SINNER STROLLS TO SEMI-FINAL CLASH WITH SHELTONDefending champion Jannik Sinner reached the semi-final with a comfortable 6-3 6-2 6-1 win over Alex de Minaur,

Defending champion Jannik Sinner raced into the Australian Open semi-finals on Wednesday in imperious fashion after Iga Swiatek was equally ruthless to close on a first Melbourne crown.

As much as any top player, Sinner has been able to expose De Minaur’s lack of first-strike weaponry. The Aussie’s strength is his scrambling and counterpunching, but Sinner serves too well, hits too hard, places the ball too precisely for his defense to be effective. De Minaur hasn’t found a way to hurt, rattle, of disrupt him.