Adnan Januzaj is an extremely talented young footballer. I don't think anyone can argue with this statement.

People are talking about giving him the iconic 'No.7' shirt worn by United legends such as George Best, Eric Cantona and David Beckham.

But haven't we seen this all before? 

Let's go back a few years. Federico Macheda was United's latest prodigy.

Touted for big things, Macheda burst onto the scene in the Premier League, scoring goals against Chelsea and Aston Villa. Again, he was full of talent, but ultimately ended up nowhere near where the bar had been set.

Although he is still young at the age of 22, he is away on loan at Doncaster and I wouldn't be surprised if he never played for United again.

Alexander Büttner. He was signed by Sir Alex during last season's summer transfer window and was lined up to replace the aging Patrice Evra. 

Büttner made his league debut on 15 September 2012, setting up the second goal and scoring the third, in a 4–0 home win against Wigan Athletic.

After such a successful debut, there were cries of "he's better than Ashley Cole!" and "he'll be the best left-back in the world!" to name a few.

Today, Patrice Evra is still United's first choice left-back at the ripe age of 32. Although Evra's performances aren't as good as they used to be in his prime, he is still above Büttner in the pecking order.

This is what worries me.

As I said before, Januzaj's talent is not in question.

United were awful for a good chunk of their match at the Stadium of Light on Saturday and Januzaj's performance was what got them over the line, getting them all three points.

But can his whole career be based on this one game? Especially against a Sunderland side who are affixed to the bottom of the league table with an interim manager at their helm?

No. United have had a torrid start in the league this season and Januzaj's performance against Sunderland has been the only thing people seem to care about.

If he maintains these performance for the rest of his career, then it's great. But if he slowly fades away like those before him, don't be too surprised.

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