Barcelona have confirmed that almost 70 percent of Neymar's transfer fee from his move to Camp Nou went to a company owned by the player's parents.

The club have revealed the details of Brazilian Neymar's move from Santos after Spanish prosecutors called on a Madrid judge to investigate what they perceived to be irregularities in the deal. The case was brought by Jordi Cases, a Barcelona member who opposed club president Sandro Rosell.

Rosell has been accused of failing to divulge the true cost of the deal. Cases and others claim it could rise from £48.6 million to more than £63 million, with £34 million going to Neymar's family as a "signing bonus".

However, Barcelona say that figure went to N&N Consultoria Esportiva and Empresarial Ltd, a company owned by Neymar's mother and father.

As a result, Barcelona could be open to further legal action from Sao Paulo-based DIS Esporte, a separate player investment fund, after they acquired 40 percent of Neymar's transfer rights during his time at Santos.

DIS Esporte received £5.8 million after Neymar's move to Barcelona, which was only 40 percent of the fee when N&N's £34 million had been removed from the equation.

Prosecutors for the firm have asked FIFA and Santos for the official documents from the deal, with rumours a "simulated" version exists alongside the real one.

Barcelona, however, have demanded Cases' lawsuit be "thrown out of court" after denying any wrongdoing, and have submitted an affidavit to the court.