Sunderland are facing a cut in expenditure after worrying financial details emerged yesterday.
The club's accounts for the year ending July 2011 revealed a net operating loss of £31.2m.
"We must keep our wages structured and realistic," chief executive Margaret Byrne said.
"It means being tough with the players and being more creative with contracts."
American billionaire Ellis Short, who owns Sunderland, has insisted that the club will conform with UEFA's financial fair play rules.