Atletico Madrid president Enrique Cerezo reckons his club must have evidence that Barcelona agreed a deal with Antoine Griezmann before his release clause dropped.
The Spanish champions announced the arrival of the Frenchman on Friday, and Atletico responded quickly by insisting they were due €200m not €120m for the forward.
Cerezo has now followed that up by insisting the club would only have issued the statement if they had evidence to back it up.
“If the club have made this statement it’s because there’s evidence,” he said.
”We have to study it and we’ll demand the amount we consider to be necessary.