After gleaning four points from the first two fixtures, victory in part one of a double-header against the Basque outfit would set the Reds up nicely for qualification from Group A.
"I feel that this is an important one for us," Moyes asserted. "If we could win this one, it would give us a strong position in the group. We have to go out there and take advantage of the home game and try to get a result.
"I hope it will go to plan. That's what we want to do to put us in a strong position early on."
For breaking stories and all the great banter like us on Facebook: facebook.com/tribalfootball