The Reds return from Bilbao with a superb 3-0 semi-final scoreline, but know the job is still to be completed in the second leg at Old Trafford on Thursday night.
Our head coach has stressed the Europa League must remain the priority but took a 26-man squad to the Basque Country in order to begin preparations locally for the 14:00 BST kick-off at the Gtech Community Stadium.
Youngsters Harry Amass, Tyler Fredricson, Jaydan Kamason, Bendito Mantato and Chido Obi could all feature after being taken to Spain, but Noussair Mazraoui has already been ruled out, after being withdrawn at San Mames.