Atletico Madrid have reported Barcelona to FIFA for making an illegal approach for Antoine Griezmann, a club spokesperson has said. Barca's director of institutional relations, Guillermo Amor, said over the weekend that it was "possible" president Josep Maria Bartomeu had held talks with Griezmann's family. In line with FIFA's rules, clubs that wish to sign a player must first communicate that desire to the player's club before they can then begin to negotiate with the player if given the green light. The club confirmed the news to ESPN FC and a spokesperson for Atletico told Mundo Deportivo on Tuesday: "Atletico Madrid have reported Barcelona for repeated contact with Griezmann and his people, contact which we are aware of. He is a player with a contract with Atletico Madrid and a long contract at that." Unbeaten Atletico are currently second in the table, six points behind leaders Barcelona, and Marca reported that they feel that the Catalan club's interest in Griezmann, as real as it may be, is also a destabilising tactic. The action comes after Amor was asked about Barca's desire to sign the France international on Sunday following a Mundo Deportivo report that Bartomeu had held a meeting with the forward's family. "If that's what [Mundo Deportivo] said, it's possible..." Amor told Movistar+. "Maybe there's been a meeting and things have advanced, although I don't know. There's a good understanding, maybe there have been talks.