Overview
- Sinner stopped in the third round against Tallon Griekspoor at 6-7(3), 7-5, 3-2 due to severe right-thigh cramps, and Griekspoor said it was not the way he wanted to win.
- Reports from Shanghai cited oppressive heat and very high humidity as conditions that heighten the risk of cramping and muscle fatigue.
- The retirement cost Sinner roughly 950 ranking points from his 2024 title defense in Shanghai.
- With Carlos Alcaraz skipping Shanghai because of ankle discomfort from his Tokyo run, the Spaniard holds a reported 1,340-point lead in the rankings.
- Sinner plans to resume in Vienna before Paris‑Bercy and the ATP Finals, and Spanish reporting projects Alcaraz would clinch year-end No. 1 by earning 470 points across the last two ranking events.