Sebastian Vettel lost victory in the Canadian Grand Prix to Lewis Hamilton after being penalised for dangerous driving against his rival.
The Ferrari driver made a mistake under pressure from the world champion, running wide at Turn Three, and pushed Hamilton wide as he rejoined the track.
Race stewards decided Vettel had rejoined the track unsafely and penalised him five seconds for forcing him off the track.
The Mercedes driver would likely have passed Vettel had he not been blocked.
The move will doubtless lead to a major controversy but Hamilton was clear that he felt Vettel had been unfair.