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

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'.

And just as Djokovic had a couple of hurdles by the names of Roger Federer and Rafael Nadal to deal with, Sinner is not alone among the newest generation of tennis stars. His top rival at this point is Carlos Alcaraz, who has four Slam victories at age 21 — and won all three matches he played against Sinner in 2024.