The quarterfinals continue on day 11 at Melbourne Park as Alex de Minaur prepares for his maiden appearance in the final eight of the Australian Open against defending champion Jannik Sinner.Rumours have abounded that Sinner is unwell,

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.