Sauber have announced that Esteban Gutierrez will be promoted from his reserve driver role to a race seat for 2013.
Gutierrez will partner Nico Hulkenberg who was announced as a Sauber driver at the Abu Dhabi Grand Prix.
The promotion of Gutierrez leaves current Sabuer driver Kamui Kobayashi unlikely to find a race seat for next season.
Departing driver Sergio Perez appeared to announce Gutierrez on Thursday after saying in an interview that Gutierrez would be partnering Hulkenberg.
Caterham have announced that Charles Pic will move from Marussia to the team from 2013 onwards after signing a multi-year deal.
Pic impressed the team with his performances against experienced teammate Timo Glock and Marussia now sit ahead of Caterham in the standings.
The signing of Pic leaves the futures of current Caterham drivers Heikki Kovalainen and Vitaly Petrov uncertain.