Overview

• Sinner stopped after about 23 minutes trailing 0–5, logging two double faults, nine unforced errors and no points won on second serve as he told officials he felt too unwell to move.
• The medical cause has not been confirmed, with outlets citing possibilities such as heat stress, a food-related issue or a virus, and Sinner said he had felt unwell since the day before.
• He has withdrawn from the US Open mixed doubles he planned to play with Katerina Siniakova and will rest for a few days, according to Italian reports.
• The result trims the ranking gap to roughly 1,890 points, leaving Sinner to defend 2,000 points in New York while Alcaraz defends 50 and would return to No. 1 with the title.
• Players and commentators criticized the Monday 3 p.m. final and the heat in Cincinnati, with Alejandro Davidovich Fokina urging changes and Paolo Bertolucci arguing players share responsibility for scheduling.