Jose Gaya knows Valencia faces a tough task when it takes on Athletic Bilbao in the Europa League last 16.
Valencia defender Jose Gaya has demanded perfection from his teammates as the team prepares for Thursday's Europa League encounter with Athletic Bilbao at San Mames.
Gary Neville's men hammered Rapid Vienna 10-0 on aggregate in the round of 32, but a tougher task awaits against a fellow Liga opponent in the next round.
Gaya expects Athletic to cause Valencia plenty of problems and realizes the visiting side will have to be on top of its game if it is to get a positive result in the first leg in the Basque Country.