Defending champion Jannik Sinner has moved into the quarterfinals at the Australian Open after beating Holger Rune during a match slowed down by medical timeouts for each player and a delay because the net got knocked loose.

The two best men's players in the world are reconfiguring the sport before their opponents' eyes. They don't know what to do about it

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

Home favourite Alex De Minaur will face Jannik Sinner in the quarterfinals of the Australian Open after the world number eight beat world number 42 Alex Michelsen of the US 6-0 7-6 6-3 in the round of 16 Monday.