Now, Ferrari Driver Academy member and one-time Ferrari grand prix racer Oliver Bearman will join Haas in 2025 having signed a 'secret deal', say the Daily Mail.
Bearman, meanwhile, attracted mainstream attention for his impressive performance on F1 debut in Saudi Arabia when he replaced Sainz, who was out of the weekend after FP2 with appendicitis.
As one of Ferrari's 2024 reserve drivers, the then-18-year-old qualified 11th and moved up to seventh in the race, which made him the youngest driver to score points on debut.
Bearman is also acting as Haas' reserve driver this season, alongside his duties with Prema in F2, with whom he is competing for the second successive season in the tier.
A member of the Ferrari Driver Academy since 2021, Bearman has been evaluated by bosses of the Scuderia and Haas in private tests and practice sessions.
The man from Chelmsford will become the fourth Brit on the grid, joining Ferrari-bound Hamilton, Lando Norris, and George Russell.