Mercedes won’t be able to run its upgrade on both cars at the Mexico City Grand Prix due to repairs needed after George Russell’s qualifying crash at COTA.

Russell crashed heavily at the penultimate corner on Saturday, damaging the car to such an extent that Mercedes had to change specification and work through parc ferme hours to prepare it for the race. That led to a pit lane start for Russell, and team principal Toto Wolff says there aren’t enough spares of the package introduced last weekend to allow both drivers to run the upgrade in Mexico.

“No, we won’t have ,” Wolff said. “We will be missing the floor that needs to go back to the UK and then be repaired for Brazil. So we will be running the specification .