Australian Open semi-finals: Sinner beats Shelton, Djokovic retires against Zverev – as it happened

Jannik Sinner saw off Ben Shelton in straight sets to set up a final against Alexander Zverev, who was leading by a set to love when Novak Djokovic retired injured

Djokovic produces another hold to go up 2-1 but his inability to land a first serve is already looking like it could be an issue going forward. Landing just four of his 21 serves at the first time of asking so far, the Serb was taken to break point four times in that game only to fight back and eventually produce the hold. Unable to land a decisive blow, the host broadcaster is already postulating that the occasion may be getting to Zverev.

A much less dramatic hold for Zverev, working his serve and baseline play to drop just a single point.