Manchester United midfielder Marouane Fellaini says they deserved their Europa League win at Celta Vigo.
United will host the semifinal second-leg defending a 1-0 lead.
"I think 1-0 is a good result, it is not easy to win here," the Belgian midfielder told MUTV.
"Now we have a second game and we have to be ready because it will be a big game for us. It will be tough, we know that."
Fellaini is wary of their La Liga opponents, and believes they will put up a fight in the second leg, but insists that home advantage at Old Trafford gives them the edge.
"They are a good team, they can play, they have good players," he added. "Also, we play at Old Trafford, in front of 75,000 people, so we have to give everything on Thursday.
"I think we were in control. We knew what we had to do. We played well, we created some chances in the first half, second half as well. I think we deserved the goal."