Defending champion Jannik Sinner has defeated 46th-ranked Marcos Giron of the U.S. 6-3, 6-4, 6-2 at the Australian Open.

Jannik Sinner typically has a relaxed, laid-back demeanour on the tennis court and it’s becoming a little clearer to understand why.

Gael Monfils joined Roger Federer as the only men to reach the Australian Open's fourth round at age 38 or older since the ...