Blackburn Rovers are reportedly lining up Andre Pinto as a possible replacement for Christopher Samba.
Samba has made no secret of his desire to leave Rovers, but was denied a move during the January transfer window.
Pinto, 22, is rated at around £1.5 and currently plays for Olhanense on loan.
The Portugal Under-21s centre-back is signed to FC Porto, but has had loan spells with Santa Clara, Vitoria Setubal and Portimonense.
Blackburn are currently 19th in the Premier League with 18 points from 24 games.