Barcelona is planning to sue former player Neymar for 7.8m million pounds over his 200million pounds world record move to Paris St-Germain.
Barcelona are now claiming a breach of contract by Neymar as he only signed a new five-year deal in October.
The Spanish club say they are seeking £7.8 million in damages, and an additional 10% in interest.
The club’s claim relates to a bonus payment Neymar received when agreeing his new deal last year.
Barcelona said in a statement the club “decided to take these actions in defence of their interests”.
Neymar made the move after the French club bought out his contract.