Stoke owner Peter Coates has admitted the club would have to consider selling goalkeeper Asmir Begovic if one of the big clubs interested in him made a bid.
The Bosnia and Herzegovina international is likely to be in even higher demand if his nation qualifies for next summer’s World Cup.
Although the Potters are keen to keep hold of the £15m-rated keeper, Coates admits he may be forced to let him leave.
He said: “You always have to be realistic about these things.
“If a call came from a top European club and was attractive to him, then you have to look at it.
“It wouldn’t be much of a surprise to me and that’s why we have contingency plans in place with other goalkeepers at the club.
“We would be reluctant to sell him because you want to keep your best players, but equally you are realistic about things. You also have to consider the player’s view.”
Stoke have England Under-21 keeper Jack Butland on their books. He was signed in the summer in case Begovic left at that stage, but is on-loan at Barnsley at the moment.