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Andrew Benson
BBC F1 correspondent

McLaren’s Lando Norris pipped Mercedes driver Kimi Antonelli to the fastest time in final practice on the weekend on which the world title is poised to change hands from the Briton to the Italian.

Norris pipped Antonelli by just 0.001 seconds at the end of the last session before qualifying as both moved ahead of Ferrari’s Charles Leclerc, who was fastest on Friday but 0.117secs off on Saturday.

Antonelli will become champion on Sunday as long as he does not lose more than 23 points to team-mate George Russell or 24 to Ferrari’s Lewis Hamilton. The only way Antonelli can be prevented from winning the title is if Russell wins and he finishes lower than ninth, or Hamilton does and he is out of the points.

McLaren’s Oscar Piastri was fourth fastest, 0.195secs off the pace, with Red Bull’s Max Verstappen 0.351secs behind Norris in fifth and ahead of Hamilton.

Russell and Red Bull’s Isack Hadjar brought up the rear of the drivers from the top four teams, with Racing Bulls’ Liam Lawson and Arvid Lindblad completing the top 10.

News before practice was that Esteban Ocon has been dropped from his Haas seat for the rest of the weekend and replaced by reserve driver Roy Hirokawa. The Japanese was 19th in final practice, fourth places and 0.577secs behind team-mate Oliver Bearman.

At the back, neither Audi’s Gabriel Bortoleto or Cadillac’s Sergio Perez set a time as they suffered engine problems that required a power-unit change.

Along with giving us your predictions for pole position today, let us know how you're feeling about Esteban Ocon's situation at Haas and the fallout between Max Verstappen and Liam Lawson.

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On track, Gabriel Bortoleto has an issue already, telling his Audi pit wall there is something wrong with his power-unit.

If you were following along with us yesterday, you will have seen a radio exchange between Esteban Ocon and his engineer, Laura Mueller. The Frenchman was unhappy when the team told him his tyre for his race simulations were going to be changed.

On Saturday, Haas released the news Ocon will be replaced by Japanese reserve driver Ryo Hirakawa, who took part in first practice on Friday, for the remainder of the Mexico weekend.

We don't have any more details behind the decision, although a spokesperson at Haas said it was not because the Ocon was ill (there has been illness in the paddock with other drivers this weekend).

Ocon is leaving Haas at the end of season, with Brazilian Rafael Camara will joining the US-based team for his debut season in 2027.