Jannik Sinner is wary of World No.2 Alexander Zverev as the Italian bids to join an elite group with back-to-back Australian Open titles in a final that pits the top two players against each other. 

The ice-cool runaway World No.1 goes into Sunday’s Melbourne Park decider on a 20-match win streak, dropping just two sets in his six matches so far. Sinner is favourite to secure a third Grand Slam crown and second at the Australian Open afterhis  triumph over Daniil Medvedev last year.