Winger Valon Behrami has told West Ham he wishes to leave Upton Park.
The Switzerland international, 25, has been linked with a move to Italian side Palermo this summer, and the Hammers are willing to listen to offers.
However, co-owner David Sullivan insists Behrami will not be allowed to leave on the cheap.
Sullivan said: “He doesn’t want to be here, his wife doesn’t like London – but he cost us £6m and his agent got more than £1m to bring him to West Ham.
“He’s actually a very decent player and I’m surprised we’ve not had a bid for him.”