Manchester City risk pricing Joao Cancelo out of a permanent move to Barcelona.
Cancelo is on-loan at Barca for the season and has quickly impressed.
Talk of an outright deal has already been raised, with Cancelo also keen on a permanent stay.
But Sport says City's asking price could prove too rich for Barca.
For the moment, City are demanding 50m to sell Cancelo, a fee deemed 'impossible' for Barca given their current financial situation.