Kewell's �5m deal caused controversy with Leeds McKenzie anger at deal

The Football Association (FA) only has jurisdiction over agents it licences so it has passed the matter on to Fifa, world football's governing body.

Documents relating to the �5m transfer have been handed to Fifa by the FA.

Kewell's transfer was surrounded by controversy after Leeds alleged that they received just �3m of the transfer fee with the remaining �2m going to the player's representatives.

Under Fifa rules, agents have to lodge a �50,000 bond to hold a licence to do business - but Kewell's representative Bernie Mandic allegedly does not have one.

Mandic is employed by a company called Max Sport, of which there is an Australian-based subsidiary - Sports Corporation International - for who his brother Nikola works, and he is recognised by Fifa.

The world football governing body will examine whether Bernie Mandic's role in the deal extended beyond administration - but he has insisted his involvement was "above board".

"The Harry Kewell deal was negotiated by a licensed Fifa agent," said Mandic.

I find this latest episode quite hilarious Bernie Mandic

"That man is Nikola Mandic and he is there on the Fifa website.

He added: "I find this latest episode quite hilarious."

Mandic said his role did not involve anything other than speaking on Kewell's behalf as his commercial manager.

"If Leeds were uncomfortable with that, then it was never mentioned," he said.

"They were at liberty to deal with Nikola. They said it was not necessary until we get to a point of finalising something."

Adrian Bevington, the FA's head of media relations, confirmed his organisation had approached Fifa.

"Due to the international element of the transfer, and the fact that the FA has jurisdiction only over agents licensed by the FA, the matter therefore falls within the jurisdiction of the world governing body," he said.

"The FA will provide any assistance that Fifa may require."

Fifa's regulations on the issue of unlicenced agents are extensive, and the use of a non-licenced agent could lead to a heavy fine or even a 12-month suspension.