Darren Cahill, one of Jannik's coaches, believes the key lies in a transformation reminiscent of one man - Roger Federer. The Italian experienced a massive blow in the US Open final, with his serve letting him down against Carlos Alcaraz.

NEW YORK -- Jannik Sinner got broken for the first time in Week 1 of the U.S. Open. Dropped the opening set, even. Fell way behind in the third set, too. "I'm not a machine, you know," he said with the hint of a smile Saturday. "I also struggle, sometimes.

Sinner and Alcaraz's 2025 rivalry was defined by how they responded to losses — of big titles, and to each other.

Jannik Sinner's victory over Carlos Alcaraz at the Six Kings Slam event this past weekend saw him win the exhibition tournament for a successive year. The Italian took down the world No. 1 6-2 6-4 in the final round in Riyadh, Saudi Arabia on Saturday ...