Sauber has announced that Marcus Ericsson will race for the team in 2015, meaning one of Adrian Sutil or Esteban Gutierrez will leave.

Ericsson will join the team from Caterham, which entered administration last week and has been given a two-week deadline to find a new buyer. Ericsson, however, has wasted no time in getting his next seat confirmed and said he is "proud" to have been able to impress the team in his rookie season.

"Fresh from a very turbulent week, I was suddenly given my best early Christmas present ever," Ericsson said. "The Sauber F1 Team has put its trust in me for 2015, and it makes me proud, as Sauber is known to be one of the best teams in developing young drivers.

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"It will be a great challenge. I will give my very best to develop both as a driver, and to be part of the challenge to put the Sauber F1 Team back closer to the front where it belongs."

Team principal Monisha Kaltenborn said Ericsson's recent performances is one of the reasons Sauber has opted to sign him.

"We are pleased to announce this cooperation," Kaltenborn said. "We have got to know Marcus as a highly motivated driver. He did not have an easy rookie season this year in Formula One, however, he kept calm and improved continuously, mainly in the last races. We are convinced that signing Marcus can give the team a fresh impetus."

Sutil currently has a contract in place to race for Sauber in 2015, resulting in the possibility of Gutierrez being left without a drive when the Mexican Grand Prix returns to the calendar next year. However, Sutil's future is not secure, with the team adding in the Ericsson announcement: "The second driver for the 2015 season will be announced at a later date."