Manchester United midfielder Ander Herrera reportedly remains on the radar of La Liga champions Barcelona.
The Spaniard's current deal at Old Trafford will expire in the summer, leaving several teams monitoring the player's situation ahead of next season.
According to The Sun, Herrera is still wanted by Barcelona after the club failed to sign him in the last transfer window.
The report adds that the 29-year-old is keen to stay at United, but frustrations are growing as his contract negotiations have stalled.
Herrera has 112 caps for the Red Devils, netting 10 goals over the course of four seasons.