Borussia Dortmund reportedly stand to receive £18m if Barcelona sell Ousmane Dembele during the next transfer window.
After a big-money switch to Camp Nou in 2017, Dembele has endured a frustrating three years through a combination of lack of consistency and injuries.
At a time when Barcelona are keen to raise funds for other players, there has been frequent speculation regarding the France international's future.
However, according to Bild, the Catalan outfit will have to hand Dortmund £18m of any fee which they receive for his signature.
Despite a number of bonuses yet to be activated, the report claims that a deal is in place where Barcelona must fulfil their obligations regarding set clauses.
With Dembele already expected to be sold for much lower than the initial £94m which was shelled out three years ago, it leaves Barcelona facing the prospect of making a bigger loss on the winger than has been reported.