Jannik Sinner is seeking to defend his Australian Open title on Sunday and win his third Grand Slam title when he takes on Alexander Zverev in the final.

MELBOURNE, Australia — It’s not often that a man is able to follow up his first Grand Slam title by repeating as the champion at the same tournament a year later, which is what Jannik Sinner will be trying to do Sunday when he faces Alexander Zverev in the Australian Open final.

Jannik Sinner is wary of "physical beast" Alexander Zverev as the Italian bids to join an elite group with back-to-back Australian Open titles in a final Sunday that pits the world's top two players.