What happened: Haas mounted Ryō Hirakawa's name and driver number over its garage stall at Autódromo Hermanos Rodríguez ahead of Saturday's track action. The setup solidifies the team's operational transition after replacing Esteban Ocon for the remainder of the Mexico City Grand Prix weekend.

Why it matters: Hirakawa previously ran Friday's opening practice session before being called up to take over the seat for qualifying and the race. The sudden promotion gives the Japanese reserve driver his official Formula 1 grand prix debut alongside Oliver Bearman.

What to watch: Hirakawa takes part in final practice and Saturday qualifying to set the grid for Sunday's race in Mexico City.