Barcelona will require over 100m to sign permanently on-loan pair Joao Felix and Joao Cancelo.
Felix is on-loan from Atletico Madrid and Cancelo from Manchester City, with the pair outstanding for Barca since their arrival.
Mundo Deportivo says to turn their deals into a permanent transfers Barca will have to find over 100m.
City are prepared to sell Cancelo for 25m at the end of the season.
Meanwhile, Atletico want 80m for Felix to leave outright, having originally signed the striker from Benfica for 120m.