But the Finnish broadcaster MTV3 said the 34-year-old is fighting fit for Hockenheim.
"I think it's a very good place to be," he told Britain's Sky.
"Obviously the racing hasn't been very good this year but that's the way it goes sometimes.
"We are trying to fix things, I need something very specific to be happy with the car and right now it's not happening, but for sure if I could choose to race for any team, I would take Ferrari.
"The day I hate racing I will stop, even if it's in the middle of the year I would walk away, but it's not now," Raikkonen added.
The report said Tom Stallard replaces Dave Robson.
And it emerges that the driver steward at Hockenheim this weekend will be Jochen Mass, the famous German driver who is perhaps best known for being involved in Gilles Villeneuve's fatal crash in 1982.
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