The 32-year-old has scored two goals and made four assists in 29 Premier League games for the Red Devils this season and he has been a regular fixture in the Manchester United first team.
Young has been deployed at left-back by Mourinho and he has been earning huge amounts of praise for his strong performances for the Red Devils.
There has been talk that Manchester United could be looking in to bring in a new left-back this summer, with the likes of Ryan Sessegnon and Alex Sandro touted as possible targets.
However, Mourinho seems to have hinted that he is expecting Young to play a key role for Manchester United in the coming season once again.
Speaking in an interview with MUTV, Mourinho said: “When I arrived, he was playing a few matches per season.
“For the last couple of seasons, lots of injuries, lots of doubts, lots of question marks about his future at the highest level.
“In two years, we managed to have him, even with the important injury he had at the end of last season.
“But we had him for lots of matches, being important, probably going to the World Cup.
“I think he’s better now than he was two years ago. That’s the way I see things and, next year again, he will be an important member of our squad.
“If he’s now on 200, I hope, next season, he goes into the 250s.”
Manchester United are currently gearing up for their final Premier League game of the season – a home clash against Watford at Old Trafford on Sunday.
The Red Devils will then switch their attentions towards preparing for their FA Cup final showdown against Chelsea FC at Wembley next weekend.
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