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.

Jannik Sinner and Elina Svitolina won their respective Round 3 matches and advanced to the pre-quarters. While Sinner beat Marcos Giron in straight sets, Svitolina got the better of Jasmine Paolini.

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.

The Australian Open quarter-finals continue on Wednesday and top seed Jannik Sinner's task of defending his crown is not getting any easier. The Italian is recovering from an illness and will face Australia's last hope Alex De Minaur,

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.

First came the medical timeouts, one each for Jannik Sinner and Holger Rune with the temperature above 90 degrees Fahrenheit at the Australian Open.

No. 19 seed Madison Keys scored the big upset on Day 9 of the Australian Open, defeating No. 6 Elena Rybakina 6-3, 1-6, 6-3 at Margaret Court Arena to advance to the tournament quarterfinals.

Lorenzo Sonego will take on American Ben Shelton in the other men’s quarter-final on Jan 22. Read more at straitstimes.com.

The Australian Open quarter-finals are heating up as Jannik Sinner, battling illness, faces Australia's Alex De Minaur. Meanwhile, Iga Swiatek enters her match free of doping appeals. Experienced players Madison Keys and Elina Svitolina also showcase their adaptability in women's top matches.

Jannik Sinner and Iga Swiatek are eyeing a place in the Australian Open quarter-finals on Monday while golden couple Gael Monfils and Elina Svitolina hope to extend their family odyssey.

Novak Djokovic was at the centre of another Australian Open row on Monday while Iga Swiatek will be desperate to avoid a major shock and Jannik Sinner is also eyeing

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