Athletic Bilbao coach Ernesto Valverde was relieved after their 2-1 Copa del Rey win at UE Rubi.
Valverde admits the Catalan minnows made it a difficult night for them.
He said, "For Rub it was a great dream and for us it was suffering, because these games are like that. Either you focus from the beginning or any play can be a lottery. The responsibility is on everyone who is in the field for me, I have the obligation for my team to pass.
"I remember last year's games with Alzira, Eldense and Sestao and we suffered a lot. You have to take the field, which at some point looked like a skating rink, and it can cost you dearly. The important thing is that we have passed and it has been a celebration for the people here. I don't consider the game over even with 0-4 . With 0-2 the intention was to score the third and for them not to score, which is what can be a problem."
On goalscorer Adu Ares, he added: "He is a young player from whom we expect a lot. He has dribbling, self-confidence and shooting. He has to be more forceful in the area and this time he has been."