Nick Kyrgios’ return to the Australian Open is over after he and partner Thanasi Kokkinakis stopped playing while trailing in the second set of their first-round doubles match.

World No 1 Jannik Sinner makes it 16 wins in a row, while Nick Kyrgios and Thanasi Kokkinakis pull out of their doubles match in second set through injury to the latter; watch action from ATP and WTA

Nick Kyrgios raged at an Australian Open umpire after his doubles partner Thanasi Kokkinakis was given a code violation for hitting the ball out of play. Kokkinakis was punished in the first set against Aleksandar Vukic and James Duckworth for launching the ball into the stands in frustration.

Jack Draper expects a hostile crowd to bring the best out of him at the Australian Open. The British No 1 will face home favourite Thanasi Kokkinakis in the second round at Melbourne Park on Wednesday, with the match scheduled in the night session on John Cain Arena.

Australian doubles pair James Duckworth and Aleksandar Vukic have eased into the second round of the men's doubles after opponents Nick Kyrgios and Thanasi Kokkinakis retired during the second set of their match on John Cain Arena.

Nick Kyrgios' Australian Open farewell could be at risk after his doubles partner, Thanasi Kokkinakis, raised concerns about his fitness to compete in their opening match in Melbourne.