Timo Glock will miss the final race of the season in Abu Dhabi, his Toyota team confirmed on Tuesday, and will again be replaced by Kamui Kobayashi.
The German driver has been forced to miss the last two races in Japan and Brazil after he cracked a vertebra in an accident during qualifying at Suzuka.
Although Toyota was hopeful Glock would be fit to compete in the final race of the season, the Japanese squad said on Tuesday that it did not want to take risks and so Kobayashi will race again.
"We feel genuinely sorry for Timo that his season, which has included two impressive podium finishes, is ending in this way," said team president John Howett. "Having discussed the medical advice with Timo and his management, the team has decided to take no risk and to put Kamui in the car. Kamui performed well in Brazil in difficult circumstances so we are happy to ask him to once again deputise."
The 23-year-old Kobayashi had a promising debut at Interlagos, finishing in 11th position.