The former Barcelona B star struck in the 2-0 win.
Named man of the match, he later said: "I feel honored to be Player Of The Match. I already felt that we could do something today. Everybody in the team was very positive. But now we still have three games to come. Three finals, so to speak. We have to remain calm. Our job isn't finished yet.
"The key to our success? Our focus perhaps. We didn't create many chances but we did what we needed to do and that was score. It was really a team performance because the guys in the back defended very solid as well.
"It was not easy but together we made it happen. We believed in each other."