Morata and Castilla teammate Nacho both saw action in the derby win.
"We are very happy. It was necessary to win the Derby in order to keep second place, and we managed it. Personally I am very happy because I have won my first match here. It is a derby, and if you are not motivated to play you are not a player," said the striker.
"Nacho and I, who do not usually play, know that whenever you go out onto the field you have to give everything.. It was not difficult to get into the way the team play."