Carlos Sainz has called Oscar Piastri's 10-second time penalty from the Sao Paulo Grand Prix 'unacceptable' and criticised the FIA's driving guidelines.

Points standings tighten as McLaren teammates Lando Norris, Oscar Piastri stunningly fail post-race inspections at Saturday's Las Vegas Grand Prix.

Oscar Piastri wants to win the final two Grands Prix of the season after now being in a difficult situation in the battle for the 2025 world title. The Australian is in a difficult situation entering the final two rounds of the season in Qatar and Abu Dhabi.

On his title bid, which could be 24 points with two races and a sprint remaining should both McLaren drivers be excluded from the Vegas race, Piastri acknowledged that he was relying on Norris making a mistake.