Tottenham and Brighton are among clubs keen on Porto attacker Luis Díaz.
AS says Roma, Tottenham Hotspur, Inter Milan and Brighton are all interested in the Colombia international.
Porto are prepared to listen to offers for Diaz this summer as they seek to balance their books.
His agent Carlos Van Strahalen declared: "Clearly, with the great Copa América that Luis did, the interest of the clubs has increased, but at the moment there is nothing concrete and the player continues to enjoy his holidays with his family and friends.
"Since before the Copa there were several clubs closely following Luis's process thanks to the good numbers he has registered in his two seasons in Portugal, but it is not a secret that after the tournament interest has increased, but they have been just approaches.
"I don't know anything about Barcelona at the moment."