Defending champion Jannik Sinner beats eighth seed Ben Shelton 6-3 6-4 6-4 to set up a semi-final with Novak Djokovic at the Australian Open.

Novak Djokovic is aiming for his 11th Australian Open final and a record-breaking 25th Grand Slam title, but he faces a major challenge against the defending champion, Jannik Sinner.

Across four completed matches that Djokovic has played at the Australian Open so far, he has won 58.5% of all the points that he has played while returning second serves.