Jannik Sinner beats Ben Shelton in straight sets to reach Australian Open final

Jannik Sinner celebrates after defeating Ben Shelton (Ng Han Guan/AP)

Defending champion Jannik Sinner defeated Ben Shelton to reach his second successive Australian Open final.

The world number one will take on Alexander Zverev, who led by a set when Novak Djokovic retired injured in their clash earlier, on Sunday as he chases a third grand slam title.