Barcelona must reportedly sign Ajax defender Noussair Mazraoui if they want to win the race for Borussia Dortmund forward Erling Braut Haaland.
With their immediate financial issues potentially being solved by a loan, Barcelona may be in a position to bring in Haaland during the summer transfer window.
The Norway international is said to have a £67m release clause, an option which will undoubtedly be activated by more clubs than just the La Liga giants.
According to Sport, agent Mino Raiola may only be prepared to allow Haaland to move to Camp Nou if they take another of his players.
The report claims that Raiola wants the Catalan outfit to also sign soon-to-be free agent Mazraoui from Ajax.
The right has enjoyed a strong campaign with the Dutch side, making a total of 28 appearances in all competitions.