Kimi Raikkonen is unable to say if he will definitely be fit for the weekend's Korean grand prix.
Albeit ultimately on the podium, the Finn struggled through the last event in Singapore with a back injury.
His trainer Mark Arnall said late last week that Raikkonen will be fit for Korea, but the 2007 world champion has admitted: "We will have to see how it is when I get out on track on Friday."
Korea will be the 33-year-old's sixth-last grand prix for Lotus before switching to Ferrari for 2014.