Jannik Sinner extends win streak to 18 at Australian Open

MELBOURNE, Australia — Jannik Sinner wasn’t shaky or lucky to survive this time and the only thing really hot on Monday was his streak, which now stands at 18 straight wins at the Australian Open. The two-time defending champion had a 6-1, 6-3, 7-6 (2) win over fellow Italian Luciano Darderi to reach the quarterfinals