Atletico Madrid are to report Barcelona to FIFA for illegally approaching Antoine Griezmann.
The 26-year-old France international signed a new five-year contract earlier this year, but hhas been linked with several other clubs including Manchester United.
However, it is Barcelona who have annoyed Atletico, who they claim have spoken to people around Griezmann, including family members.
“Atlético Madrid have reported Barcelona for repeated contact with Griezmann and his people, contact which we are aware of,” a spokesman for the Spanish club told Mundo Deportivo.
“He is a player with a contract with Atletico Madrid and a long contract at that.”