It is understood the report is critical of safety at Windsor Park

The IFA claim that the club has failed to ensure the stadium "is maintained in good order, repair and condition".

Linfield said the deal is irrevocable, that they've complied with all its conditions and that holding a Uefa licence proves the venue is safe.

They also question the IFA's motive for its publicised concerns over safety.

606: DEBATE Is the IFA right over Windsor contract?

In a statement Linfield said that they regard "much of IFA's publicly expressed concerns about Windsor Park as being motivated less by a genuine concern over the state of repair of the ground and more as the basis upon which IFA now seeks to avoid its contractual commitment to LFC (Linfield Football Club)".

The agreement between the IFA and Linfield, signed in 1984, stretches for another 80 years.

A damning report, by stadium designers the Miller Partnership, is soon be published and is understood to say the stadium doesn't meet with safety standards and is in a poor state of repair.

Last week IFA chief executive Howard Wells called for government funding to keep the ground up to standard.

The Linfield statement added: "Were there to be any genuine concern on the part of IFA as to the state of the ground at Windsor Park, it seems strange to the board of LFC that the IFA would have hosted an international fixture there as recently as 28 March 2007.

"Moreover, the IFA acknowledges (albeit with conditions attached) that it is prepared to countenance the holding of international fixtures at Windsor in August and November.

"Indeed, as recently as 18 June, LFC was happy to receive its UEFA licence, which permits it to play matches at Windsor Park under the auspices of UEFA. One of the signatories of the UEFA licence was in fact Mr Wells.

"It is LFC's informed view, as confirmed by its holding of a UEFA licence and its insurers (who continue to provide cover), that the Northern Ireland team can continue to play at Windsor Park for as long as is required subject to the carrying out of those works which will be outlined and agreed in the final Miller Report.

Linfield are now consulting with their lawyers over the governing body's attempt to end the contract.

"Whilst, in light of IFA's recent correspondence, LFC has been left with no option but to refer this matter to its lawyers, the club confirms that it is willing and ready to explore and find a negotiated solution to the satisfaction of all parties," they said.

"LFC does however expect IFA (not least since it is the public face of the game in Northern Ireland) to act honourably and in good faith in its dealings with the club so far as the commitment it gave in 1984 is concerned.

"In light of the fact that this matter is now with LFC's lawyers the club regards it as inappropriate to make any further statement with regard to this issue."