He’s become an indispensable member of the first-team under the Portuguese boss after previously struggling to establish himself under Louis van Gaal.
The Spaniard was Man United’s Player of the Year and following his impressive form and has turned down a move to Barcelona and Valencia to build on his career under Mourinho.
Speaking about future plans, Herrera is focused on winning trophies at Old Trafford.
“We are already thinking about the European Super Cup,” he tells Sky Sports.
“I think it’s the only trophy that Manchester United missed. Now we have all of them we are going to be in the history of the club and that’s important.
“Football is about trophies, no? About achieving objectives. Now we are going to play Champions League. Three trophies: League Cup, Community Shield and Europa League. In the beginning of the season we were talking about that. The manager said he was coming to Manchester United to win trophies and he has done it. First season, three trophies.
“It was the perfect finish to the season. We controlled the game and we got another trophy for our museum.” And that man-of-the-match award? “I am very grateful for the award but, to be honest, I think all of us won the man of the match. When I think about football it is a team sport. I don’t trust too much in personal trophies.”
He started both of the club’s 2017 cup final victories, the Europa League victory over Ajax and was also the Man of the Match in Stockholm.
After having to wait for his senior debut last year, he’s now the Player of the Year and deserves so much credit for his rise at United.