Sinner Retires in Shanghai, Year-End No. 1 Bid Ends as Reports Point to Paris and Davis Cup Absences

Severe cramping in Shanghai has sharpened scrutiny of his workload.

Overview

Jannik Sinner retired in the third round of the Shanghai Masters against Tallon Griekspoor due to severe cramping, ending his title defense.
The retirement eliminated his mathematical chance to finish the year at No. 1, leaving Carlos Alcaraz set to end 2025 on top.
Eurosport Italy’s Simone Eterno reports Sinner will skip the Paris Masters and the Davis Cup while planning to play Vienna, the ATP Finals in Turin, and the 6 Kings Slam exhibition in Saudi Arabia, with no official confirmation yet.
Former Italian pro Paolo Bertolucci described Sinner as “a bit frail” and questioned his late-season schedule, highlighting travel and match load decisions such as playing Beijing.
Despite the setback, Sinner reached 59 wins in his first 75 hard-court Masters 1000 matches, second at that checkpoint only to Pete Sampras.