Cristiano Ronaldo and Mesut Oezil scored the goals that secured the Spanish side a 2-0 win over AC Milan.
“I always expect a difficult game, but it seems to me that we started with a fantastic approach that was just too fast for Milan. We scored two quickly and could’ve got a third,” Mourinho said.
“It was a test of intelligence for my team to know how to handle the situation and the tempo.
“These are three valuable points for a very young side against a Milan outfit with immense experience.
“The team is working well and improving. The names may suggest they are not great professionals, but the so-called Galacticos are hard-workers who know they have to put the effort in.
“Right now the psychological aspect is crucial for me and they seem a completely different side to last season.”