After coming off the bench to good effect in the 3-2 success against Stoke City, it's clear that the winger is ready to make a major contribution this term.
"Signing Adnan Januzaj on a new five-year contract at Old Trafford shows the club's willingness to go out and try to sign the best players," Moyes wrote in his programme column for United Review.
"Young footballers get opportunities to progress here at Manchester United and I have no doubt that, in the future, Adnan will become a top player. He is 18 years old, has good ability, plus maturity beyond his years.
"All aspects of his game will continue to improve the more he plays matches but already he has made important contributions to the team through both making and scoring goals."
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