West Bromwich Albion could see an auction sparked for midfielder Borja Valero.
The Spaniard's form on-loan at Villarreal this season has attracted the attention of Barcelona and Arsenal.
Barca coach Pep Guardiola is impressed by Valero and believes the former Real Madrid Castilla midfielder would fit into his system.
Valero would jump at the chance of moving to the Nou Camp, though the prospect of joining the Gunners, where he would have a better chance of playing regularly, has also turned his head,
