Kimi Räikkönen will not be able to take part in the last two races of the season (USA and Brasil) as he will be undergoing back surgery in Austria. The injury goes back to 2001 but it seems that Kimi has been suffering during the last two races in India and Abu Dhabi and he chose not to take part in the remaining two races in order to be ready in time for the next season where he will be switching to the Scuderia Ferrari.
Let's try to avoid the speculations and wish Kimi a speedy recovery. Besides, the fact that he recently expressed his enthusiasm for racing in the States again strengthens the idea that the Finn is doing this due to health concerns. But on the other hand, we also know that Kimi recently visited Maranello to meet his new boss and take the seating measures and that he still hasn't been paid by Lotus this season...
The replacement driver's name has not been determined yet but rumors started to emerge that last year's GP2 champion and Lotus current reserve driver Davide Valsecchi could be ready to take Kimi's seat this weekend.
Mathematically, the Lotus driver might drop from third to sixth in the championship if he misses the last two races. But we also know that third or sixth doesn't make a big difference for him. He just wants to be the champ!
[News source: F1Fanatic]