Nick Heidfeld will replace Pedro de la Rosa at Sauber for the remainder of the season, the team have confirmed.
The German, who until recently held the position of Mercedes GP reserve driver before joining Pirelli as a test driver, has a long association with the Swiss team having raced for them for seven seasons. Heidfeld left Sauber a mere nine months ago after he was replaced by de la Rosa following BMW's withdrawal from the sport.
"It was a hard decision for me to make as a team principal and I want to thank Pedro for his professionalism," explained team boss Peter Sauber.
"By signing Nick we have a driver we know extremely well who will help us to further judge the comparative potential of our car."
Understandably delight with securing a race seat, Heidfeld admitted it felt like he was returning home.
"I'm looking forward like crazy to having the opportunity to go racing again in a good car in Formula One from the Singapore Grand Prix onwards. After the last months I'm even more motivated than ever," he explained.
"For me it is like coming home, as I raced for seven years in total for the team from Hinwil. Without doubt I will be feeling at home straight away and this should help me to familiarise myself as soon as possible with the car. I want to thank Peter Sauber for the faith he has put in me."
De la Rosa admits the decision came as a shock to him but remains hopeful that he can secure a drive for next season.
"I am surprised by the team's decision, but I respect it and would like to wish everyone good luck for the remainder of the season," he said.
"I still intend to be in Formula One for 2011," added the Spaniard.
