Valtteri Bottas will leave Sauber at the end of the 2024 F1 season, with team confirming F2 leader Gabriel Bortleto as his replacement.
The Finn could find a home back at Mercedes as a reserve driver, while teammate Zhou Guanyu’s departure was also confirmed, with the team set to become Audi in 2026.
Sauber had already signed Nico Hulkenberg from Haas for 2025, but Bortlet now completes the line-up for next season.
A statement from the team read: “After open and constructive discussions with Valtteri Bottas and Zhou Guanyu, we mutually concluded that conditions to continue together could not be met so we agreed that it is time to part ways.
“We would like to thank both for the contribution they have made to the team in the last three years. They have been the embodiment of professionalism, using their experience and enthusiasm to support our growth.”
While Bortoleto revealed his excitement to work alongside Hulkenberg.
“This is one of the most exciting projects in motorsport, if not in all of sports,” Bortoleto said. “Joining a team that combines the rich motorsport history of Sauber and Audi is a true honour.
“Beyond simply being a member, I aim to grow with this ambitious project and reach the pinnacle of motorsport. I'm incredibly grateful for the opportunity given to me by the team and for the chance to work alongside an experienced driver like Nico.
“Both programs have a proven track record of nurturing young talent, and I am confident that together, we will write our own success story.”
And Guanyu explained his disappointment after the news was made official, while revealing he has options to remain in the F1 Paddock in some capacity.
“I will be leaving the Stake F1 Team Kick Sauber at the end of the 2024 season,” said Guanyou. “I would like to thank all of the fans for their continued support. You have been fantastic and you continue to inspire me.
“I am immensely proud to represent my country as the first-ever Chinese Formula 1 driver. I hope that my racing continues to inspire others who are following my story. I am happy to have already achieved many things under difficult conditions in Formula 1, including scoring points in my first race, fastest lap and some memorable battles throughout the grid.
“Sadly, the last two seasons have been challenging for all, but I want to look forward. I am positive about the future, and I am now totally focused on making sure that I can truly show what I am capable of. I'm now discussing a number of options to stay in the Formula 1 Paddock, will update you all soon.”
