Overview

• Sinner stopped after about 23 minutes, trailing 5-0 to Carlos Alcaraz, telling ATP medics he was too unwell to move and saying he had felt sick since the previous day.
• He is undergoing further examinations and resting for the next couple of days, with Italian reporting excluding food poisoning and pointing to a virus as a plausible but unconfirmed cause.
• The Cincinnati tournament featured temperatures well above 30°C under a new 12‑day format with many afternoon matches, prompting player criticism over scheduling and welfare.
• Heat-related issues affected players and spectators, with Arthur Rinderknech collapsing before retiring, Alexander Zverev retiring in the semifinal, and Frances Tiafoe stopping against Holger Rune as some matches were interrupted.
• Attention turns to the US Open, where Sinner is the defending champion and current No. 1, with his participation uncertain pending medical updates and the draw scheduled for Thursday.