In Formula 1, Lewis Hamilton cruised to a dominant Italian Grand Prix victory to put a stranglehold on the world title and was cleared of breaking tyre rules. Hamilton's seventh victory this season puts him 53 points ahead of team mate Nico Rosberg as the German retired. Mercedes were investigated on the grounds the tyres were below the minimum permitted pressure. But the stewards allowed Hamilton to keep his victory after ruling Mercedes had followed safe operating procedures. Ferrari's Sebastian Vettel was second as Rosberg suffered an engine failure with three laps to go.