The Australian has won seven grands prix and has emerged as a potential championship contender over the last couple of seasons with Red Bull.
But 28-year-old Ricciardo refused to rule out the possibility of driving for another team in 2019.
Speaking to motorsport.com earlier today, Red Bull team principal Christian Horner warned Ricciardo away from a move, suggesting that the grass is not always greener on the other side.
“The situation with Daniel is there’s an intent on both sides to move forwards,” Horner said at today’s French GP press conference.
“The first thing was to close the situation with the engine. That’s now done, Daniel understands the engineering rationale behind that.
“Let’s not forget he’s been in a car that the last couple of grands prix [Monaco and Canada] has been lapping the cars to our left.
“It would be a fairly bold decision to step out of a car he’s won two grands prix in this year and is a championship contender.
“I would be surprised if he was to leave the team because it’s a good fit between himself and Red Bull but it’s Formula 1.”
Earlier this week, the team announced they would be competing with Honda engines next year after splitting with Renault.
The decision was welcomed by Max Verstappen, who told reporters: “You have Honda basically working for Red Bull and Toro Rosso only, so it’s purely designed around your car.
“I think that also is very good.”
Source : EXPRESS