Paris: Finnish driver Heikki Kovalainen will replace Kimi Raikkonen for Lotus in the final two Formula One races of the season.
Raikkonen will miss the United States Grand Prix and Brazilian GP to undergo back surgery. He is joining Ferrari next season.
The 32-year-old Kovalainen has raced in 109 GPs for Renault, McLaren and Caterham, securing one win at the Hungarian GP in 2008 and three other podium finishes. He has been a test driver for Caterham this year.