Renault team principal Eric Boullier insists that Robert Kubica will come back to a race seat as soon as he has recovered from injury.
The Polish driver is currently recoperating from injuries sustained in a horror rally acccident in February and there has been specualtion that his replacement, Nick Heidfeld, would remain with Renault until the end of the season regardless of Kubica's progress.
However, Boullier reveals that the Kubica will return to the cockpit of the R31 as soon as he is ready - even if that is before the end of the season.
"The situation is very clear," he told the Polish publication Sport.
"We have an agreement with Robert and Nick is well aware that if Robert is recovered and able to come back, he will come back. End of story.
"There is no other possibility. I should know as I am the man who signed the contract! Robert is improving very quickly. After the last surgery he had to relax for some time but now he is pushing really hard. I haven't seen him lately but I've spoken to him a bit.
"I am also in constant contact with his manager Daniele Morelli and Dr Ceccarelli, who says that the situation is better than expected," he added.