West Ham co-chairman David Gold concedes they could lose Dimitri Payet this summer.
Gold admits they could struggle to stop him joining Real Madrid or Barcelona.
He said: “We’ll fight tooth and nail to make sure Dimitri pulls on a claret and blue shirt next season.
“We want to improve our squad and Dimitri is an integral part of what we’re trying to do. But we also must be realistic. If Barcelona or Real Madrid made a bid and he wanted to move there, it would be difficult to keep him.
“You can’t have a great player like Dimitri and expect no one to make a bid, especially with the performances he’s producing at the Euros.
“But the phone has not rung yet — although we know there’s a chance it will once the tournament is over. We’re not silly. Yet, let me be very clear, we would not welcome a call.
“The club certainly doesn’t need to sell him so this is not a case of ‘We’ve bought him for £10m and can now make a tidy profit’.”