The quarterfinals are underway at Melbourne Park, as rumours abound about Jannik Sinner's health ahead of his clash with Alex de Minaur. Follow live.

Iga Swiatek is dominating her Australian Open opponents the way no one has at Melbourne Park since Maria Sharapova in 2013. Swiatek’s latest lopsided win came via a 6-1, 6-2 score in the quarterfinals against No.

American Danielle Collins is out of the Australian Open following a straight-sets defeat by fellow countrywoman Madison Keys.

The American rallied from a set down to reach the last four in Melbourne for the third time, and will face No. 2 seed Iga Swiatek next.

But, Swiatek is in fine form having beaten all of her opponents over two sets in this campaign including Emma Raducanu in the third round and Emma Navarro in the quarter-finals despite some controversy over a double bounce point.

Ben Shelton wore down Italian Lorenzo Sonego 6-4, 7-5, 4-6, 7-6 (4) in a highlight-laden clash and ensured the United States has players in the men’s and women’s semi-finals for the first time since Andy Roddick and Serena Williams in 2009.

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

Jannik Sinner cruised into the Australian Open semi-finals on Day 11, January 22, after defeating home favourite Alex de Minaur in straight sets at Rod Laver Arena. The Italian, who didn’t look well in his previous match against Holger Rune,

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.

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.

Iga Swiatek’s latest lopsided win at the Australian Open came via a 6-1, 6-2 score in the quarterfinals against No. 8 seed Emma Navarro on Wednesday. The No. 2-seeded Swiatek not only has not dropped a set so far in the tournament,

Alex de Minaur is through to the quarterfinals of the Australian Open for the first time, defeating American giant-killer Alex Michelsen.