The Madrid outfit are outraged by Barcelona’s very public pursuit of the France international and will make an official complaint to world football’s governing body.
Atletico shareholders and club chiefs met on Monday morning to discuss whether the club should file a complaint and eventually came to a decision to do so.
The Catalans have made secret of the fact they are interested in signing Griezmann next year
Club president Josep Maria Bartomeu met with the Frenchman’s family last week to finalise a deal for next year and club director Guillermo Amor said the meeting could be considered a sign of progress.
‘If Bartomeu met with Griezmann’s family as the newspapers say, then there may well have been an approach,’ he explained in an interview with Movistar.