The sale of the Perth Glory soccer club to a London crypto-currency entrepreneur has hit trouble after new fraud revelations surfaced.

An exclusive 6PR-9News investigation has found that the man behind a company trying to buy Glory - businessman Jim Aylward - is convicted fraudster James Abbass Biniaz.

And documents obtained by 6PR's Gareth Parker reveal that Mr Sage was being promised $30 million by Mr Aylward – AKA James Biniaz - for 80 per cent of the A-League club.

9News and 6PR have discovered that would-be Perth Glory buyer Jim Aylward is a convicted fraudster. (9News)

Biniaz, 40, went to prison in the UK in 2010, for a scam against the tax department and has also been convicted of robbery and assault.

He is the face of a company called the London Football Exchange, which has asked Glory owner Tony Sage to become its chairman.

An agreement between LFE and Mr Sage says the $30 million will be paid "to the seller in full and in cash".

"The buyer has calculated the proposed price on the basis of the information about the target provided by the club and the price remains subject to the successful outcome of due diligence," the agreement reads.

Aylward is the face of the London Football Exchange. (9News)

Mr Sage has not commented on the latest revelations about the deal, but the Football Federation of Australia said it has not received any documents about the proposed sale of Perth Glory and its a-League licence.

Mr Aylward recently posted a video on social media praising Mr Sage for getting involved in the London Football Exchange and its plans to buy soccer teams around the world and integrate that business with crypto-currency tokens.

"The fact that Tony Sage, with his reputation, with his history in football, has joined the LFE as chairman is fantastic news," Mr Aylward said.

"It's a great endorsement for me - a great coup for us."

When Biniaz was asked via email by 6PR if he had been using the name Aylward he did not deny it.

But he asked Parker to "hold off" releasing that information until he could explain later.

Mr Sage, who is traveling overseas, has been contacted for comment. There is no suggestion he has done anything untoward or illegal.