Oscar Piastri's fading world championship challenge suffered another setback in the Sao Paulo Grand Prix when he finished fifth after a penalty for colliding with Mercedes' Kimi Antonelli in an incident that caused the retirement of Ferrari's Charles Leclerc.

A day after crashing out of the Sprint after running over a wet kerb, Piastri dropped a season-high 24 points behind McLaren team-mate Lando Norris with just three rounds to go after the Briton won Sunday's race and the Australian finished one place lower than where he qualified in a race compromised by the 10-second penalty from stewards

Piastri's hopes of challenging Norris unravelled on lap six when racing action resumed following an early Safety Car.

With Norris leading the field as cars raced towards the first turn, second-pla

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