Barcelona are suing Neymar for an alleged breach of his contract at the Camp Nou after he joined Paris Saint-Germain earlier this month.
The Blaugrana released a statement on Tuesday in which they insisted they are owed money back from the Brazilian which he received in a contract renewal last season, in addition to €8.5m in damages plus interest.
It follows on from the Catalan club’s insistence they would not pay the €26m in bonus payments Neymar was set to receive this summer as a bonus.
“FC Barcelona have sent a claim to be made against Neymar for breach of contract to the RFEF for it to be passed on to the French Football Federation [FFF] and FIFA,” read a Barcelona statement.
“In the lawsuit, the club demands the player return the already paid sum for his contract renewal because he has not fulfilled his contract; €8.5m in damages; and an additional 10 percent in interest.
“The club also requests that PSG subsidise the amounts in the event that the player cannot take responsibility.”
Neymar’s lawyers then released a statement denying any wrongdoing and that they would be constructing a defence case: “It is noteworthy that this news was received with surprise, since the athlete completely fulfilled the contract then in force, with the full deposit of the amounts set out in the buyout clause freely agreed with FC Barcelona for his release.”