Kimi Raikkonen will attempt to qualify for the Singapore Grand Prix despite a recurring back problem nearly forcing him out.
The Finn complained of back pain during Friday's running, and his situation worsened in the final practice session, which he ended 12th overall.
Lotus had been concerned enough to start getting reserve driver Davide Valsecchi ready just in case he was needed to step in.
It is thought that Raikkonen's issue has been caused by a trapped nerve.
Following attention from the team's medical staff on Saturday evening, Lotus and Raikkonen have decided that he will now take part in qualifying - although it is unclear if he will be able to complete all three sessions.
It is possible that the Finn may only take part in Q1, to secure his spot in the grid, before returning to his hotel to rest ahead of the race.
If Raikkonen is unwell on Sunday, then Formula 1's rules mean that it is too late for a replacement to be slotted in.