Real won 3-1 to overtake their rivals into second place.
Reguilon said, “We knew we'd go second with a win and we came into the game hungry and with lots of energy. It's a derby, so there's special motivation there and we put in a great performance in every respect. We're full of confidence, we're enjoying a great run of form and that's being reflected out on the pitch. We all work for each other, we're a team and everything is turning out the way it should.
“Team is the key word here, it's the most important element and the pillar around which our daily efforts are based. And when we all work hard and do our bit, ultimately the results take care of themselves.
"We're going to keep fighting for everything. We knew it was a good chance to cut the gap today and we've managed it. We leave here with positive vibes because we knew how important it was and now we'll head into the upcoming games with even more desire."