Mark Webber's future at Red Bull is clouded, according to F1 chief executive Bernie Ecclestone.
It is believed the world champion team is considering replacing the veteran Australian next year with Kimi Raikkonen, or the top youngster from the development squad Toro Rosso, Daniel Ricciardo.
In the end, however, the decision could be 36-year-old Webber's.
"At the relevant time, we will sit down with Mark and see what he wants to do, what his plans are for the future," Red Bull team boss Christian Horner said in Monaco on Thursday.
Ecclestone, who is known for keeping his finger at the pulse of all the major deals in F1, also hinted that Webber will have a say as to whether or not he stays.
"I don't think Webber knows if he will stay at Red Bull," the 82-year-old told Formula Money editor Christian Sylt.
Sylt had also asked Ecclestone about the longer term future at Red Bull, and whether boss Horner might be given a share of the team, along the lines of Monisha Kaltenborn at Sauber.
"If Didi (Mateschitz) was going to sell I think he would look after Christian," said Ecclestone. "Christian and Adrian Newey have got long term contracts."