"At this moment in time, selling Tomasz to United is not a viable option," West Brom chairman Jeremy Peace was quoted as saying by the BBC on Friday.

"It would severely weaken our squad at a time when we are trying to strengthen it for a promotion push."

West Bromwich were relegated from the Premiership last season, and are trying to hang on to their key players as they aim for an instant return to the top flight.

Peace said the only way West Bromwich would sell the 24-year-old goalkeeper would be if United let 19-year-old Italian striker Rossi join the Baggies on a season-long loan.

However, Sir Alex Ferguson is reluctant to lose Rossi for the season, especially after star striker Ruud van Nisterooy has been sold.

"It means if we sold Tomasz to United, without Rossi coming in return, it would potentially cause us more problems without solving any -- despite the receipt of cash," said Peace.

West Bromwich have now turned down three offers from United for Kuszczak, who joined West Bromwich in July 2004 from Hertha Berlin.

"This will come as a disappointment to Tomasz who has indicated to us he would like to join United," Peace.

"But it is the board's job to do what is best for this football club and we will not sell Tomasz unless the deal suits us.

"Because of the way this football club is structured, we are under no pressure to sell anyone. Tomasz will only be sold if it is in our interests to do so."