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.

The World No. 1, despite feeling unwell in sweltering conditions, kept up his title defense with a four-set triumph.

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 ...

Rune, a 21-year-old from Denmark ... 1-6, 6-3, and now plays Elina Svitolina, a 6-4, 6-1 winner against Veronika Kudermetova. The other women’s matches Monday were Emma Navarro vs.

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.

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

Earlier in the day, Iga Swiatek cruised past Emma Navarro 6-1, 6-2 in their Women’s Singles quarter-final while Madison Keys secured a surprising 3-6, 6-3, 6-4 victory over Elina Svitolina to set up a meeting with Swiatek tomorrow.

Imperious Iga Swiatek swept into an Australian Open semi-final against Madison Keys on Wednesday while Jannik Sinner's powers of recovery will be tested to the limit when he faces home

Iga Swiatek will look to continue her march to a maiden Australian Open title on Wednesday while Jannik Sinner's powers of recovery will be tested in a quarter-final against home hope Alex de Minaur.De Minaur is looking to become the first Australian man to reach the semi-finals at his home Open since Lleyton Hewitt 20 years ago.