Esteban Ocon has been replaced by Haas teammate Ryo Hirakawa for the remainder of the Mexico City Grand Prix.Haas have not revealed their reasons for replacing Ocon with the team’s reserve driver.Esteban Ocon will miss the rest of the Mexico City GP weekendAFPOcon, who is set to leave Haas at the end of the season, took part in practice on Friday only for the team to release a statement on Saturday confirming Hirakawa would deputise for him.What did Haas say in their statement?The statement simply read: “TGR Haas F1 Team reserve driver Ryo Hirakawa will replace Esteban Ocon for the remainder of the weekend’s Mexico City Grand Prix, Saturday 31 October – Sunday 1 November.”The decision comes after Ocon’s tyre strategy dispute with his race engineer Laura Mueller during Friday’s second practice.What did Esteban Ocon say over the team radio?After being told of the change, the Frenchman was heard pleading to Mueller “No, no. I wanted the soft. Don’t do that to me. Come on.”His reaction came after Mueller informed him that they were switching him to use the medium tyres on his race-simulation run.Mueller’s preference was to use medium tyres leading to a quarrel between the pair.The controversy leaves Ocon, who will be replaced next year by Brazilian youngster Rafael Camara, with an awkward end to the 2026 season.He remains without a race seat for next year with few options currently available to him.The only spots currently attainable are at Cadillac and Racing Bulls, however there is little interest in him at present.Meanwhile, Hirakawa is set to race in his first ever Grand Prix in Mexico.Ryo Hirakawa will deputise for Ocon in Sunday’s raceGettyThe Japanese driver is a two-time World Endurance Championship winner with Toyota.The 32-year-old drove in first practice on Friday in Mexico using Ocon’s car and will be familiar with the track.The team statement continued: “Hirakawa, a two-time winner of the FIA World Endurance Championship (2022, 2023) and 24 Hours of Le Mans Winner (2022) with Toyota Gazoo Racing, participated in FP1 at the Autodromo Hermanos Rodriguez on Friday 30 October – his third free practice outing of the season driving the VF-26, finishing 15th overall.“The Japanese driver will partner teammate Ollie Bearman through final practice and qualifying on Saturday and Sunday’s 71-lap grand prix – Hirakawa’s Formula 1 race debut.”Four races remain after this weekend as F1 edges towards it’s season climax.Mercedes‘ Kimi Antonelli boasts a comfortable lead at the top of the standings with second placed George Russell 123 points adrift of the Italian.