Ferrari have insisted they will not prevent Michael Schumacher making a Formula One return with another team.
The seven-time world champion has been a consultant for Ferrari since retiring in 2006 and said recently he would continue for another three years.
But the 40-year-old has been linked with a move to Mercedes and Ferrari president Luca di Montezemolo said Schumacher’s role was “not binding”.
He added: “If he takes another road our agreement will no longer be valid.”
Schumacher was on the brink of a racing return with Ferrari in August to deputise for the injured Felipe Massa.
Those plans were abandoned following medical checks on a neck injury Schumacher suffered in a motorcycle accident earlier this year that caused him pain during testing.