Lewis Hamilton can clinch his fourth world drivers’ championship title at this weekend’s Mexican Grand Prix.
AFP Sport looks at how the British driver can seal the deal:
* Hamilton has to score nine points, the equivalent of any top five finish, to make it a mathematical certainty, even if rival Sebastian Vettel wins the race.
* If the four-time champion German finishes second for Ferrari, Hamilton only needs a top nine finish in his Mercedes to claim the title.
* If Vettel is third, or worse, in the race then Hamilton will be champion even if he fails to finish.
