Lopez was happy with the 3-0 win over Celta Vigo.
"Keeping a clean sheet was one of the keys to winning. Celta Vigo are a team that work hard, have very clear ideas, that play very compact defensively, and have players who were going to create problems on the counter. It was a difficult match, which needed a big effort, and in which the team did a great job to get a good result," said Lopez.
"The quality that we have told and we got the win. It was important to keep a clean sheet and they did not create many chances on the counterattack."