Despite a defeat in the Drivers World Championship, Ferrari remain confident in the Constructors Championship fight.
The Ferrari driver lost the 2018 Drivers World Championship to Lewis Hamilton in Mexico.
Sebastian Vettel admitted he pushed harder to try and topple Red Bull, but the decision cost him a P3 gridslot.
The team say the decision was a precaution against overheating brought on by Mexico's low air pressure.
Pierre Gasly and Max Verstappen are at odds over Red Bull's potential with Honda in 2019.
With the conclusion of Sunday's Mexican Grand Prix, Mercedes-AMG Petronas officially secured, for the forth consecutive season, the Drivers and Constructors World Championships.