A reputable source on Brazilian SporTV has stated that Kimi Raikkonen has finalized a deal to race for the new Mercedes Grand Prix outfit for 2010.
He is reported to have finalized the deal on the same day that Button finalized his deal with McLaren.
This news, if accurate puts to rest the rumors of Kimi taking a sabbatical in 2010. His main requirement was to be in a car which he thinks is capable of fighting for the title and with the success of Ross Brawn's outfit in 2009, there is much reason to believe that the newly named team will be capable of defending the titles they achieved in 2010.
The credibility of the source behind this news has been proved various times this year so look out for the news to hit the English medium shortly!