Barcelona captain Lionel Messi is launching legal action over the leaking of his contract.

Messi has seen the details of his current contract leaked to the public, with it being revealed he will earn over €555m for the length of the deal when it expires in June.

The Argentine will file a criminal complaint against the five people he considers are suspected of having leaked the entire private document to El Mundo.

According to Esports Rac1, action will be taken against Josep Maria Bartomeu (former president of Barça), Carles Tusquets (current president of the Management Committee), Jordi Mestre (former sports vice president), Òscar Grau (CEO of the club) and Romà Puntí (head of Barça's legal services).

They are the five people who would have access to the contract and who could have leaked it to 'El Mundo', against which Messi will also sue for its publication.