Both Leclerc and teammate Carlos Sainz have experienced a lack of power at the high-altitude circuit, with some rivals suspecting that the team may have detuned its power units in some way in a search for reliability.
Earlier this year, Sainz suffered a fiery engine failure at the Red Bull Ring, another venue where altitude is an issue, and a non-finish in Mexico could be costly in the team’s battle for second place in the championship.
