Alexander Zverev was left blindsided a bit after being asked about Jannik Sinner's doping case but quickly collected himself and noted that the ITIA's investigation cleared the Italian so he wasn't interested in throwing out speculations about whether or not the world No.

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.