Anthony Martial's performance against Arsenal in 2015 that made Man United sign him

Anthony Martial playing for Monaco

Anthony Martial is starting to show why Manchester United broke the world record for the highest transfer fee paid for a teenager in 2015.

Although his first season was successful, Martial fell away in the following seasons as he failed to produce his best on the pitch.

But, it's fair to say he's in a rich vein of form recently.

The French winger has scored six goals in the last five Premier League games, which includes a double against Chelsea in October.

It's undeniable that he's one of the, if not the most talented United player, and he's finally starting to produce what everyone knows he is capable of.

But what caused Man United to spend so much for him when he was just 19 years old?

Louis van Gaal was clearly impressed with him from his time at Monaco and made that known just after he was unveiled as a United player.

"Anthony is a naturally talented, young, multi-functional forward with great potential," Van Gaal said, per the BBC.  "We have been watching him for a while now and he has developed immensely during his time at Monaco.

"He has all the attributes to become a top football player; however we need to give him time to adjust to his new environment and the rhythm of the Premier League."

Anthony Martial playing for Monaco against Arsenal in 2015

A video has now emerged, created by ScoutNationHD, which shows footage of the match that made United sign him.

Martial was given his first Champions League start against Arsenal at the Emirates Stadium and he turned in an inspired display.

Monaco would eventually win 3-1, with Martial one of their stand out performers.

Despite not scoring himself, he laid the ball on a plate for Dimitar Berbatov to score his side's second and ran Hector Bellerin ragged throughout.

You can watch his individual highlights of the game below:

That is seriously impressive. It's important to remember that he was just 19 and playing away at Arsenal in his first ever Champions league start.

Despite being so young and in such a big occasion, Martial proved he was one of the most talented youngsters in world football by putting in a marvellous display.

It's no wonder United sealed a deal for him just a few months later.

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