Giuliano Bertolucci landed in the Spanish city on Wednesday morning to discuss the midfielder’s potential exit.
His trip to Spain came following a flight to France, where he had talks with representatives of Paris Saint-Germain, and a quick trip to Lisbon to hold talks with Brazilian side Flamengo over the future of another client, Mario Balotelli.
Coutinho’s future is the agent’s biggest concern at the moment, though, as two possibilities remain on the table.
The former Liverpool star could still move to PSG as part of a deal that would bring Neymar to Barcelona, while a loan to Bayern Munich with an option to buy also remains on the table.
Barcelona sent a delegation including technical manager Eric Abidal to France for talks with PSG over a deal for Neymar, making an opening offer in the region of €100 million (£93m/$104m), plus Coutinho.