Bradford Park Avenue are demanding the Football Assoc-iation reinvestigate the transfer of their former goalkeeper Paddy Kenny from Bury to Sheffield United - and Avenue fans are being urged to bombard the Soho Square offices with individual protests.

Former Avenue chairman Frank Thornton, who is still the club's major shareholder, has written to FA chief executive Brian Barwick asking him to reopen the case.

Avenue hope a tribunal would award them £200,000 - money which would set them up as they plan for the future.

Kenny, pictured, joined Sheffield United two years after Avenue sold him to Bury for £20,000, with a ten per cent sell-on clause.

Bury got into severe financial turmoil and went into administration but Kenny was receiving rave reviews at the time and was valued by some pundits at £1m.

Bury sold him to United for £42,000 and Avenue received just £2,500 from the sell-on clause. Thornton protested, believing they should have received £200,000 from a £1m transfer fee.

In his letter to Barwick last week, Thornton asks three questions:

Why would Bury ever have accepted a fee of £45,000 for Kenny?

Why did the FA never write back to Avenue after the initial inquiry in 2002?

What will the FA do now to get Avenue financial justice?

Thornton, who believes Bury and the Blades should be investigated fully for their dealings over Kenny, said: "I believe the club was cheated out of £200,000.

"Bearing in mind the FA is looking at the Mike Newell allegations, the time is right for this to be looked at again. We want justice."

Avenue director Zig Zwierzewicz said: "I would urge fans to support this action and write to the FA."

An FA spokesman said: "We have received a letter from Bradford Park Avenue and will respond in due course."