Newcastle manager Alan Pardew has admitted his discomfort at Jose Enrique's refusal to sign a contract extension.
The left-back has just one year left on his current deal and as a result has most recently been linked with Arsenal in the wake of the sale of Gael Clichy to Manchester City.
Liverpool are also thought to be interested in Enrique, but it was reported earlier in the summer that a move for the 25-year-old broke down.
Pardew is less than happy with the uncertainty surrounding the Spaniard's future, however, he remains hopeful that the defender may decide to sign a new contract.
The Newcastle boss said: "He's made it pretty clear that he still won't sign a contract and that his future may be elsewhere.
"I'm not really comfortable with that, but we will have to deal with it and we are still hoping that he signs a contract with us. There has to be doubt over that situation."