With their 12th European Cup, the Spanish giants also became the first club to retain the trophy in its modern format.
"We all know the Premier League is the most important thing and one of the things we have to improve next season", he said.
"The surgery still has a little more healing to do, but I will be able to rest in the summer, do some more rehab and then come next season stronger", he added. "We are confident and the plan is to win more". But before United begin to clear space in the Old Trafford museum for the Super Cup to be squeezed alongside the three trophies Mourinho has already won as manager at the club - the Europa League, EFL Cup and, as we are counting, the Community Shield - the first challenge facing Mourinho will be to ensure that his team do not come back from Macedonia having been hammered. He finishes the season for the fifth straight year as the competition's top scorer with 12 goals and the Portuguese moves closer to matching Lionel Messi's record of winning the Ballon d'Or five times.
"It's great to be doing that and I want it to continue". It is a long season but I am motivated.
Goalkeeper Gianluigi Buffon turns 40 during next season's competition and defender Andrea Barzagli was 36 last month.
"I'm not going to say that I'll be here for the rest of my life, that's doesn't exist", Zidane said. One player nearly certainly to leave is James Rodriguez, who arrived amid high expectations after the 2014 World Cup but didn't get a lot of playing time under Zidane.
Leonardo Bonucci's raking pass was volleyed into the box by Alex Sandro and Gonzalo Higuain kept the ball airborne for Mandzukic to chest it up and send a looping volley over Keylor Navas.
Casemiro restored Madrid's lead just after the hour and further goals from Ronaldo and substitute Asensio confirmed victory before Juve substitute Juan Cuadrado was harshly shown a second yellow card for pushing Sergio Ramos.
"No, I don't think Juventus have reached the end of a cycle at all", he said. They've still got lots to give.