Athletic Bilbao have registered their interest with Real Zaragoza for midfielder Ander Herrera.

El Correo says Bilbao president Fernando García Macua met with his Real counterpart Agapito Iglesias on Monday to discuss Herrera's situation.

The young midfielder is regarded among Spain's brightest young talents and he is also being courted by Valencia, Sevilla and Villarreal.

All signs are that Real will cash in on Herrera in the summer.