Felipe Massa announced via Twitter on Tuesday that he will no longer be driving for Ferrari next year.
The BBC later claimed Kimi Raikkonen would be replacing him and returning to team he left in 2009.
Raikkonen won the world title with Ferrari in 2007, the first of three years he spent partnering Massa at the Italian team.
“From 2014 i will no longer be driving for Ferrari,” said Brazilian Massa on his official @Felipe1Massa account.
“I would like to thank the team for all the victories and incredible moments experienced together.
“Thank you also to my wife and all of my family, to my fans and all my Sponsors. From each one of you I have always received a great support!
“Right now I want to push as hard as possible with Ferrari for the remaining 7 races.”
Talk in the paddock has been raging for several weeks about who will be Ferrari’s second driver next year alongside two-time former world champion with Renault, Fernando Alonso.
The BBC claimed a deal was agreed Monday that will see Raikkonen return to the team where he won his only world title.
His success in 2007 was the last time Ferrari won a world title, after which British duo Jenson Button, in a Brawn, and Lewis Hamilton, in a McLaren, claimed the championship before Red Bull’s Sebatian Vettel began his three-year domination.