As the world No 1 looks to become the ‘complete player’ after defending his Australian Open title, a hearing at the Court of Arbitration for Sport stands as his next major hurdle

Of all the praise bestowed on Jannik Sinner after he won his second consecutive Australian Open championship, and third Grand Slam title overall, nothing felt as significant as the comparison made by runner-up Alexander Zverev.

In total, Sinner has won 36 of his last 37 matches, his only defeat coming against Carlos Alcaraz in the final of October’s China Open.

Jannik Sinner's victory at the 2025 Australian Open was so impressive that it left fans and insiders speechless. The world number 1 is clearly the best on hard courts and seems to be able to extend his dominance on other surfaces as well, dreaming of achieving the 'Calendar Grand Slam'.

In an interview with 'Sky Sport Italy' after the AO final, former ATP ace Ivan Ljubicic analyzed Sinner's triumph in detail: "The difference between him and the other players has become even clearer. I believe that this victory in Australia will give him further confidence for the rest of the season."

Alexander Zverev and Jannik Sinner shared a private jet flight to Dubai just one day after facing off in the Australian Open final. The German World No.

Jannik Sinner played his first two Grand Slam finals last year and won both of them, defeating Daniil Medvedev in the Australian Open final and Taylor Fritz in the US Open final. Tonight he did it again, outdoing Alexander Zverev, 6-3, 7-6 (4), 6-3, to capture his second straight Australian Open title.

Alexander Zverev described himself as “quite down” and “quite emotional" after once again coming within one win of earning his first Grand Slam title. And unlike his first two defeats in major finals — both of which he led,

Jannik Sinner is pushing for a second consecutive Australian Open crown in 2025.The world No. 1 remains the favourite to take out this year's tournament, but must first navigate through the semi-finals.As he looks to add to his tally, The Sporting News takes a look at Sinner's current grand slam total.MORE: Tennis' top grand slam winners of all-timeHow many grand slams has Jannik Sinner won?Sinner has won two grand slam tournaments to date.His first triumph at a major came at last year's Australian Open when he took down Daniil Medvedev in a thrilling decider.Down two sets to love, the Italian powered back to win a modern-day classic in five sets.Sinner claimed his second grand slam victory at the back end of the 2024 season, taking out the US Open.In a relatively straightforward affair, he got the better of local hope Taylor Fritz in three sets.How many grand slam finals has Jannik Sinner played in?Sinner boasts a 100 per cent win rate in grand slam finals, having won both deciders he's played so far.It's natural for players to stutter in major finals early in their career but that hasn't been the case for the talented 23-year-old.

Jannik Sinner continues to be unstoppable and his opponents have not yet found a solution to stem his dominance. The world No.1 clinched his third Grand Slam title in a row on hard court, lifting the trophy at the 2025 Australian Open thanks to a stunning run that confirmed his status as the undisputed leader of the men's tour.

Sinner, 23, becomes the second-youngest man to win consecutive Australian Open singles titles, behind Jim Courier, who was 22. Additionally, Sinner is now the fifth man to win three consecutive hard-court Grand Slam singles titles in the Open Era.