Mark Webber was far from convinced by McLaren’s official explanation for Oscar Piastri slump

Former Formula 1 driver Mark Webber was reportedly unconvinced by McLaren's technical explanations regarding Oscar Piastri's performance slump during the 2025 championship battle. Webber has now officially split entirely from managing Piastri following a mutual decision announced on Monday. The separation comes after tension arose during 2025, when Piastri conceded a 34-point title lead over teammate Lando Norris amidst controversial team orders and difficult races on low-grip tracks.

McLaren team principal Andrea Stella attributed Piastri's downturn to driving style difficulties on low-grip circuits such as Baku, Mexico City, and Las Vegas. However, reports indicated Webber doubted that reasoning as relations grew strained.