Barcelona are watching Hugo Sotelo's contract talks with Celta Vigo.
The midfield youngster is tied to Celta to 2025, but is on reserve-team terms.
Relevo says talks over a new deal have stalled - and alerted the interest of Barca.
Barca see Sotelo as competition for Oriol Romeu, who is the one genuine defensive midfielder available to coach Xavi.
Also watching developments are Real Madrid.