Gabriel Bortoleto will become the fourth full-time rookie on the Formula One grid next season after completing Sauber’s line-up for 2025. Sauber announced on Wednesday that Bortoleto, 20, will race for the team alongside Nico Hulkenberg next season as its existing drivers,

Brazilian driver Gabriel Bortoleto partners Nico Hulkenberg to complete Sauber's 2025 lineup. Valterri Bottas and Zhou Guanyu to part ways with the Zurich-based team.

There's only one seat available for the F1 2025 season after Sauber announced that Gabriel Bartoleto is joining the team. However, there's a key reason why Franco Colapinto wasn't considered it. A key factor behind Sauber’s choice to sign Gabriel Bortoleto over Franco Colapinto for their 2025 F1 lineup has come to light.