Lewis Hamilton has clinched a remarkable fifth Formula One driver's championship after finishing fourth in the Mexico Grand Prix, in a day to forget for Daniel Ricciardo.
Australian Red Bull driver Ricciardo started the day on pole but immediately lost ground after a dud start, before apparent engine failure eight laps from the finish ended his race.
It was an eighth DNF for Ricciardo in his final season with Red Bull before a move to Renault.
Red Bull teammate Max Verstappen won the race, ahead of Ferrari pair Sebastian Vettel and Kimi Raikkonen.
More to come.
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