PSG new signing Neymar, has promised to battle his old club, Barcelona for part of his 2016 contract renewal premium which he claims has not been paid.
Barcelona had announced that it is suing Neymar for compensation following his move to PSG.
The Brazil forward left the Nou Camp this month for a world-record £200million, joining PSG in a move that more than doubled the previous world record fee.
The Spanish club said on Tuesday they were pursuing damages from Neymar for what they allege to be a “breach of contract”.
Neymar’s response is the latest in an increasingly bitter war of words following his move to France.
Neymar and his lawyers via a joint statement quoted in the Spanish media said the Brazilian star and his lawyers will begin defense in due course.
Following official notification and after full review of the club’s claim, the player’s formal defence will be filed in due course.
“Regarding the bonuses owed for the execution of the contract of 2016, it is also necessary to inform that the player has already initiated the formal procedures of the collection before the competent courts.”
On Monday, Neymar said Barcelona deserved “much more” than the current board of directors and added that it made him “very sad”.
On Tuesday, the Catalan club said they were chasing 8.5 million euros (£7.8million) in damages with a 10 percent addition and, that if Neymar could not pay, PSG should.
The demand appears to relate to a payment made to Neymar when, in 2016, he renewed his contract with Barcelona through to 2021. It was sent to the Spanish football federation on August 11 with a wish for it to be forwarded to the French Federation and FIFA.
“Barcelona decided to take these actions in defence of their interests, after a unilateral termination of contract urged by Neymar Jr a few months after signing the renewal until the end of the year 2021,” a statement read.