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.

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,

On the second day of the quarterfinals, the last semifinalists of the men's and women's draws at the Australian Open will be determined. Defending champion Jannik Sinner will face local star Alex De

Follow live text and radio commentary as Alex de Minaur plays Alex Michelsen in the Australian Open fourth round.

Follow the quarter-finals action live as Madison Keys does battle with Elina Svitolina, Iga Swiatek faces Emma Navarro and Ben Shelton plays Lorenzo Sonego.

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

First came the medical timeouts, one each for Jannik Sinner and Holger Rune with the temperature above 90 degrees Fahrenheit (32 Celsius) at the

Follow live text and radio commentary as Alex de Minaur plays Alex Michelsen in the Australian Open fourth round.

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,

Novak Djokovic's former strategist Craig O'Shannessy believes Alex de Minaur has his best chance yet to topple defending Australian Open champion Jannik Sinner.

Carlos Alcaraz had Novak Djokovic on his heels early and lamented not being able to put him away in the Australian Open quarterfinals.