Arsenal's attempts to sign Sebastian Perez hit a brick wall last week when the Colombian midfielder was denied a work permit and headed back to his homeland.
Perez had been on trial at Arsenal and even featured in the pre-season friendly win over Manchester City.
A promising defensive midfielder, the 20-year-old had been identified by Arsene Wenger as a future star, but a deal appears dead in the water after the work permit ruling.
Perez now though has attracted the attention of another major European side, who do not have such stringent regulations to worry about.
Portuguese newspaper O Jogo report that the Portuguese champions are interested in adding Perez to their midfield and signing him from Atletico Nacional.
His Colombia under-20 teammate Juan Quintero plays for Porto, and would certainly be able to vouch for Perez' talents.
If a deal is done, to Porto or any other top European side, it will not be a surprise. While he was considered a hidden gem when Arsenal brought him over, his talents are no longer a secret.
Having worked hard to secure him a trial at Arsenal, it's likely his agent is busying hawking him to other clubs in Europe, who will not be restricted by work permit issues.
Watch this space on Perez joining another European club before the transfer window closes, with Porto seemingly in pole position.
image: © chilangoco