Button wins chaotic race in Canada

On the final lap of a roller-coaster Canadian Grand Prix, Jenson Button managed to deprive Sebastian Vettel of yet another win.

Despite atrocious weather conditions, several safety car phases, a 90-minute interruption to the race and a sequence of accidents, the current championship leader had driven a flawless race but as Button ratcheted up the pressure on the final lap, Vettel made a mistake that cost him the victory.