FC Porto are weighing up late bid for Napoli full back Juan Camilo Zuniga, according to A Bola.
The Dragons recently cashed in on Alex Sandro and they are now on the lookout for a left-sided defender.
And while Porto are also showing interest in former Benfica full-back Guilherme Siqueira, it would appear as though Juan Camilo Zuniga is their primary target.
The Colombian does not seem to be in the first team plans of new coach Maurizio Sarri, and he will probably be allowed to leave Stadio San Paolo this summer.
FC Porto hope to sign the Colombia international on a season-long loan and chances are that Napoli would require a much lower fee than what Atletico want for Siqueira.
The fact that Zuniga can operate on either flank as well as in midfield is likely to come in handy for Dragons coach Julen Lopetegui during the current season.