The agent of Borja Valero expects the midfielder to leave West Brom.
Borja has returned to Albion following a successful loan spell at Real Mallorca.
Alejandro Camano, Borja's agent, said: "We've had some talks, but there is nothing concrete. Sevilla are very keen.
"Right now he is a West Bromwich Albion player. He knows he has a commitment to this club, who paid a lot of money. He knows that there are many teams who have kept their eyes on him, but he keeps out of all this.
"For now we must keep quiet and see what happens in the future but Sevilla are very interested."