Januzaj burst onto the Premier League stage with a brilliant brace in United's 2-1 win at Sunderland in October and his immense potential has been one of the few bright spots in a bleak season for David Moyes's men.

The 18-year-old has already been rewarded with a new five-year contract and made his Champions League debut in Tuesday's victory over Shakhtar Donetsk.

Januzaj is relishing every moment of his breakthrough season and he revealed on Friday that he would happily stay with the club forever.

"My first opinion was to sign for Manchester United," Januzaj told MUTV.

"It was my first choice and I have signed for them.

"I am happy here. If I could play all my life at Manchester United I would do it for the club."

Although he prefers to be used as a forward, Moyes has largely been playing Januzaj in wide positions.

However, Januzaj, who was born in Belgium but is yet to commit his international future to any country given his Kosovan background, eventually feels he will move into a more advanced role.

"My best position will be behind the striker as a number 10," he said.

"I always used to play there when I was really young. I can also play on the wings and I always do my best.

"I would do that even if it was at left-back. It is my job.

"But number 10 is the position I always wanted to play.

"Football is not about age. If you are good enough to play, you have to play.

"The boss gave me a chance and I couldn't have asked for more than to score two goals on my debut.

"I was really happy with those goals. Now I have to continue and score more if I can because I have to prove I can play at first-team level."