In match against Carlos Alcaraz, Sinner was clearly ill from the beginning. He conceded the first seven points of the match, and eventually retired down 0-5 in the first set.

Jannik Sinner had to hand Carlos Alcaraz the walkover due to illness after trailing 0-5 in the final of the The post Coach Darren Cahill Shares Update on Jannik Sinner’s Health as US Open Looms ...

The world No 1 has built a remarkable record in 2025 – and keeps finding inspiration in the game his grandfather taught him.