Fernandez has been with the club for two years but has found it hard to get into the first team of late even though he has been playing for the Chile national side.
The players’ agent Alejandro Santiesteban said: “Matias will have his holidays after the match with Bolivia and we then have time until August 31 to resolve his situation because the transfer window gets closed that day.
“There is an offer from Bolton and a chance in Blackburn, where Carlos Villanueva was but we will analyse everything once the Spanish Liga ends.”