Defending Australian Open champion Jannik Sinner cruised into the semi-finals with a dominant 6-3, 6-2, 6-1 victory over home favorite Alex de Minaur, dropping just six games in a stunning display of power and precision in Rod Laver Arena. . Sinner, the No. 1 of the world, showed no signs of the illness that hampered him in his previous fight with Holger Rune. The Italian dismantled de Minaur with ease, extending his unbeaten run against the eighth-ranked Australian to 10-0, including 20 straight sets. After an uphill battle in the fourth round, Sinner looked back to his best, moving smoothly