Kevin Magnussen will return to Formula 1 as a replacement for Nikita Mazepin.
The team decided to replace Magnussen and Grosjean with Mick and Mazepin.
Russia's invasion of Ukraine resulted in the dismissal of Mazepin.
Magnussen signed a multi-year contract with the company and will drive at the pre-season test this week.
The son of a former F1 driver, the popular 29-year-old is returning to the sport.
When they replaced their experienced line-up with two rookies at the start of last season, they had to rethink.
Magnussen said that he was surprised but excited to receive the call.
I was looking in a different direction regarding my commitments for 2022, but the opportunity to return to compete in F1, and with a team I know extremely well, was simply too appealing.
Magnussen has had to negotiate releases from his contracts with two separate endurance racing teams for this season.
After leaving Haas at the end of 2020, the Dane retained a positive association with the team and sees their approach as a chance to revive an F1 career that he had previously considered over.
He finished second on his debut for McLaren in the Australian Grand Prix.
I would like to say thank you to the two companies that let me go quickly - they are both great.
I have been briefed as much as possible on the development of the VF-22 car and the potential in the package. There is work to be done but I am excited to be a part of it. I am very excited to get back in a Formula 1 car.
When looking for a driver who could bring value to the team, not to mention a wealth of Formula 1 experience, Kevin was a straightforward decision for us.
We can use Kevin as a resource for pre-season testing because of his immediate availability.
The team will not be ready for the morning session on Thursday due to flight delays, so Fittipaldi will drive the car first.
He will provide a solid benchmark for us with the ongoing development of the VF-22.