Defender Martin Montoya has joined La Liga side Real Betis in a permanent move, for undisclosed terms, subject to international clearance.
The former Barcelona man signed for Albion from Valencia in 2018, and leaves having made 57 appearances in all competitions for the club.
Montoya returns to Real Betis, where he enjoyed a successful loan spell in 2016.
Albion head coach Graham Potter said, “I would like to place on record my thanks to Martin for his service and professionalism to the club over the past two years.
“Over the past two seasons Martin has played his part in helping the club maintain its Premier League status, and on behalf of all at the club we wish him all the success for the future.”