Atletico Madrid president Enrique Cerezo has said "there will be consequences" if it is discovered Barcelona agreed to sign Antoine Griezmann back in March, when his release clause was still set at €200 million (£180 million).
Barca are expected to complete the long-rumoured signing of the French forward in the coming days after his release clause dropped to €120 million (£107 million) at the beginning of the month.
Per MailOnline's Pete Jenson, though, Cerezo has hinted there could be problems if Barca are found to have agreed a pre-contract agreement with Griezmann before the buyout fee dropped:
"The truth is I don't know, but if it is as you say and he had already signed then there will be consequences.