Team boss Cyril Abiteboul denied that, insisting that Australian Ricciardo "has a contract that he will fulfil".
But the Frenchman did admit that Renault is "talking to several drivers for next year, and among them is Fernando Alonso".
It appears that a contract may already be signed.
Noemi de Miguel, a reporter for Spanish television Movistar, says she has learned that "Renault plans to make an official announcement on Wednesday".
She did not specifically mention Alonso, but revealed: "After the race (in Austria), Cyril Abiteboul told mechanics who have been around for more than 15 years that they have already worked" with Renault's next driver. body check tags ::