Jannik Sinner says coach Darren Cahill will retire

Lone Aussie Aleksandar Vukic takes on Brit Jack Draper after doubles walkover when Special Ks bowed out injured.
In a highly entertaining Australian Open first round match, 18-year-old Joao Fonseca defeated ninth ranked Andrey Rublev.
In the Australian Open, Jannik Sinner overcame Tristan Schoolkate in four sets, despite a challenging start. Sinner prevailed ...