Barcelona are set to lose millions from Getafe wing-back Marc Cucurella's sale to Brighton.
The Seagulls are set to meet Cucurella's €18m buyout clause to bring him to England this month.
Barca will be due €1.8m thanks to a 10 per cent sell-on clause settled in the original transfer.
However, Okdiario says it could've been so much more as former Barca president Josep Maria Bartomeu chose to take more cash up front during the 2019 negotiations.
Bartomeu sold Cucurella to Getafe for €10m plus a 10 per cent sell-on clause instead of accepting Getafe's original offer of €6m cash plus 40 per cent of the sell-on fee.