Overview

• Roger Federer argued at the Laver Cup that tournament directors have slowed courts and balls to make events feel identical and increase the likelihood of Alcaraz–Sinner finals.
• Jannik Sinner rejected that premise, saying surfaces have long offered three main transitions and that players must adapt, noting only minor variations on hard courts such as the higher bounce at Indian Wells.
• Following his US Open final loss to Carlos Alcaraz that cost him the No. 1 ranking, Sinner said he and his team are implementing many small on‑court changes and expects a temporary rise in errors.
• Sinner added physiotherapist Alejandro Resnicoff, who has 15 years on tour, emphasizing support for physical improvements without overhauling the existing team structure.
• Sinner opens his ATP 500 campaign in Beijing against Marin Cilic on Thursday, September 25, not before 13:00 Italian time (19:00 local), using the event to test adjustments and defend key points ahead of Shanghai.