According to Sky News, Neymar will stand trial in October in a corruption allegation originating from his sale from Santos to Barcelona.
Neymar and the two clubs are accused of fraud and corruption in connection with the 2013 transfer.
The family of the Paris Saint-Germain player is also involved in the dispute.
The Brazilian investment corporation DIS, which used to control a portion of Neymar’s transfer rights, claims that it was underpaid when the footballer joined Barcelona from the Brazilian team, Santos, nine years ago.
DIS claims it was entitled 40 percent of the price, which was believed to be in the order of £48.6 million at the time.
Subsequent investigations were conducted to see whether any portion of the reported transfer fee had been hidden.
The trial in Barcelona, which will feature Neymar, his parents, former Santos manager Odilio Rodrigues, and Barcelona’s then-presidents and vice-presidents Sandro Rosell and Josep Maria Bartomeu, is slated to conclude only weeks before the start of this year’s World Cup in Qatar.
All of the accused have denied any wrongdoing, but their appeals to Spain’s Supreme Court have been dismissed, forcing the case to proceed to trial.