Why does former World No 1 Boris Becker believe Jannik Sinner has a “mental problem” following his French Open collapse?
Jannik Sinner suffered one of the most shocking defeats of his career at the 2026 French Open after losing to Juan Manuel Cerundolo in the second round. The Italian star looked fully in control early in the match. He won the first two sets comfortably and was only a few points away from victory in the third set. However, the World No. 1 suddenly lost momentum under the intense Paris heat and eventually crashed out in five sets.
Jannik Sinner suffered one of the most shocking defeats of his career at the 2026 French Open after losing to Juan Manuel Cerundolo in the second round. The Italian star looked fully in control early in the match. He won the first two sets comfortably and was only a few points away from victory in the third set. However, the World No. 1 suddenly lost momentum under the intense Paris heat and eventually crashed out in five sets.
