Porto are interested in Barcelona midfielder Nico Gonzalez.
Nico spent last season on-loan at Valencia and could be on the move again for the new season.
With Barca signing Ilkay Gundogan from Manchester City, midfield places are again at a premium.
Sport says Porto are in contact with Nico's agent, Jorge Mendes, about a move to Portugal.
Porto see Nico as a replacement for Mateus Uribe, who has left for Al-Nassr in recent days.