World number one Jannik Sinner defeated Alex De Minaur, ranked number one in Australia, in the quarterfinals on Wednesday, reaching the Australian Open's semifinal for the second straight time. He won with a scoreline of 6-3, 6-2, 6-1. The Italian will now face 22-year-old American Ben Shelton, who defeated Lorenzo Sonego 6-4, 7-5, 4-6, 7-6 (7-4).