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.

Defending champion Jannik Sinner dominated Alex de Minaur on his way to the semifinals by winning all three sets. The 23-year-old demonstrated his strength as world no. 1 in Melbourne when he defeated his opponent 6-3,