Joao Cancelo has become one of Barcelona best players this season after arriving on loan from Man City.
The Portuguese loan deal is unconditional so the Catalans will have to negotiate with a Premier League club to keep the defender back.
According to Diario Sport Blaugrana is ready to offer between 15 million and 20 million for the 29-year-old.
It has previously been reported that Man City will demand 30 million from Barcelona to sign Cancelo on a permanent deal. However the Catalans plan to use agent Jorge Mendes to persuade them to lower their asking price. The full-back will also push City to sell him at a lower price.