'We've got big problems' - Hamilton says Ferrari need 'serious talks'

Lewis Hamilton says Ferrari "have to have some serious talks behind closed doors" after fighting between their two drivers cost them victory in the Mexico City Grand Prix.

Leclerc cut a chicane on the first lap to take the lead from Hamilton, who then lost second place to Max Verstappen as a consequence of his team-mate's attack.

Verstappen went on to win the race with Hamilton second as Kimi Antonelli finished third to become the youngest world champion in Formula 1 history.

"Ultimately, that lost us the win today," said Hamilton. "We have to have some serious talks behind closed doors."

During a red-flag period in the race caused by a crash for Valtteri Bottas' Cadillac, Hamilton had said over team radio: "We've got big problems. Big, big problems."

The incident was the latest and arguably most serious of a series of tensions between Hamilton and Leclerc this season.

It follows Leclerc pushing Hamilton off track at the first corner of the Italian Grand Prix.

The race before that, Leclerc ignored a team order to let Hamilton by when they were on different strategies.

In Singapore last month, there was another incident when Hamilton felt he should have been let by when they were on different tyres, but Ferrari refused to make the call.

Leclerc and team principal Frederic Vasseur have yet to speak to the media after the race.