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.

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

Alex de Minaur is facing off with top seed and defending champion Jannik Sinner for a spot in the Australian Open semifinals against American Ben Shelton. Follow live.

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

Alex de Minaur said a humbling defeat by Jannik Sinner in the quarter-finals of the Australian Open on Wednesday felt like a slap across the face after a period of improvement in which he emerged as his nation's best hope of ending a major drought.

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.

Rock Island native Madison Keys advanced to the Australian Open quarterfinals and will play Elina Svitolina tonight at 6:30 p.m. CT (11:30 a.m. Wednesday in Australia). “I think it always feels really good,

Jannik Sinner’s clinical deconstruction of Alex De Minaur was a lesson in class - The World No. 1 won his quarter-final 6-3 6-2 6-1 and moved a step closer to another Australian Open title

Jannik Sinner 6-3 Alex de Minaur Ben Shelton beats Lorenzo Sonego 6-4 7-5 4-6 7-6 (7-4) to reach semi-finals Iga Swiatek drops just three games on way to last four Swiatek will play Madison Keys, who came from behind to beat Elina Svitolina Alfie Hewett through to wheelchair singles semi-finals Use audio icon for BBC Radio 5 Sports Extra commentary (UK only) Joe Rindl,

Day 9 of the Australian Open is in the books with Australian Alex de Minaur advancing into the quarterfinals for the first time.

World tennis No.1 Jannik Sinner is reportedly seriously ill with pneumonia, ahead of his crucial clash against Alex de Minaur.