Nico Hulkenberg will move to Sauber for 2013, the team has confirmed.
It will be the third team Hulkenberg has raced for in as many seasons. He arrived in F1 with Williams in 2010 but was replaced at the team by Pastor Maldonado the following year.
He spent 2011 as a test driver for Force India before joining their race team this year.
'I'm really looking forward to working with the Sauber F1 Team,' said Hulkenberg. 'It's a well-placed team and very competitive.'
'Plus it's a team in which young drivers have repeatedly delivered exceptional performances. I would like to take up that baton.
'The Sauber F1 Team is currently going through a very positive development and I'm certain that together we can achieve a lot. Until that time I will remain fully focused on my job with the Sahara Force India Team. I'd like to thank the management at Sahara Force India for giving me the chance to return to Formula One as a team driver.'
Sauber team principal Monisha Kaltenborn said: 'We've been observing Nico for some time now and his performances have been very persuasive. That was the case in GP2 and has continued into Formula One.
'An obvious highlight was how he scored pole at Interlagos in 2010 despite the most challenging external conditions. He clearly showed that he can seize the chance if it arises.
'But high spots like that are one thing; systematic teamwork is another ' and on that score I have confidence in Nico too. I'm sure he will fit in very well with the Sauber F1 Team. We look forward to working together with him.'
Sauber added the team's second driver for 2013 would be confirmed 'at a later date'.
Sergio Perez is already known to be leaving the team for McLaren. Kamui Kobayashi's seat is believed to be under threat, with reserve driver Esteban Gutierrez tipped as a replacement.
Force India team principal Vijay Mallya said it had been 'a pleasure' to work with Hulkenberg this year.
'At the end of 2010 we identified him as a star of the future and it has been rewarding to watch him develop his racing skills,' he said.
'Together with Paul he has done a brilliant job for us, helping the team score more points than ever before and giving 100% commitment every weekend. We would like to thank him for all his hard work and wish him well for the future. With three races remaining this season, we know Nico will remain totally committed and continue to deliver his best performances for the team.'
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Image © Sahara Force India F1 Team
In the round-up: McLaren team principal Martin Whitmarsh says his team should have made Sebastian Vettel work harder for his championship lead.
Ten players produced perfect scores in the Predictions Championship ' and one of them took over the lead of the points standings.
The second-placed player in each race will win their choice of one of Duke Video's new Grand Prix Heroes DVDs (pictured top).
The third-placed player in each race will win one of PJ Tierney's excellent unofficial Formula 1 posters.
Lotus will introduce an upgrade in Abu Dhabi this weekend which they hope will cure a key drawback of their recently-introduced Coanda exhaust.
Kimi Raikkonen will continue driving for Lotus in 2013, the team have confirmed.
Sebastian Vettel ' Fastest in both sessions on Friday, Vettel secured passage through Q1 and Q2 using just eight laps. He nearly tripped up with a mistake on his first Q3 lap, but his final effort secured his fifth pole position of the season. He made no mistakes at the start, and never looked like bowing under pressure after Alonso took up second place behind him.
Fernando Alonso ' Before the race Alonso said his first goal was to pass the McLarens and then put pressure on the Red Bulls in the hope that something would go wrong for them. That was exactly how it panned out: he was up to third by lap four, then chased after the Red Bulls. How he must have wished the KERS problem had affected Vettel's car instead of Webber's. Second was the best on offer and it keeps him in range of Vettel.
Paul di Resta ' Di Resta was distinctly unhappy with his car after the race and said he was unable to finish any higher than 12th. 'I've struggled to find the ideal balance with the car all weekend,' he said. 'We identified a few issues in the data last night, but they carried over into the race.'
Pastor Maldonado ' Got into Q3 but was already slipping backwards when his race was destroyed by a puncture following contact with Kobayashi. 
Pedro de la Rosa ' De la Rosa made a terrific start and briefly held 17th before the Caterhams and Marussias came past him. On lap 43 he suffered the latest in a series of brake failures for HRT, putting him into the barrier at turn four.
Visitors to the first two Indian Grands Prix might be left wondering whether anyone other than Sebastian Vettel is allowed to be at the front of an F1 race.
*This span of races includes the 1953 Indianapolis 500, which counted towards the world championship, which Ascari did not enter.
Michael Schumacher and Kamui Kobayashi will not be penalised for incidents they were involved in during the Indian Grand Prix.
