Sunderland have been given little encouragement in their pursuit of Wolves striker Steven Fletcher.
The Black Cats have tabled a bid for the Scotland international as manager Martin O'Neill attempts to rebuild his pool of frontmen, but the Black Country club's initial response appears to be a stubborn refusal.
Chief executive Jez Moxey told the Wolverhampton Express and Star: "We are not getting drawn on offers for players in or out. Our best players are not for sale; we want to keep them and build the strongest possible team for the season ahead."
He added: "We will do everything we can to retain the players we want to keep and continue to look to strengthen with new signings."