The youngster moved to Old Trafford during the summer in a move worth an initial £36 million, with the fee potentially rising to £58 million, according to BBC Sport.
The transfer caught many unaware, with Martial yet to hit double figures in a Ligue 1 season and not having made his international debut at the time of the move.
In transferring, he became both the most expensive French player and the most expensive teenager of all time, yet there could have been some questions as to whether the 19-year-old would require some time to adapt to the intensity of the Premier League, not to mention of whether his considerable price tag might heap too much pressure upon him.
Martial responded to some of the doubters with a magnificent cameo in the fierce derby against Liverpool. Thrown into the contest with United’s fiercest rivals—arguably one of the most testing environments in English football—the Frenchman hit the ground running, bagging a fine goal to see off Brendan Rodgers’s side.
However, Reds great Carragher isn’t getting carried away by what he’s seen and, speaking to Sky Sports, has insisted that Martial’s true qualities may be seen as much in the future as this season for Louis van Gaal’s side.
“He made a fantastic start to his Old Trafford career with that goal but it’s difficult to judge a player so quickly,” the former England international began.
“It’s very early days and I think Louis van Gaal was right to say he won’t play all the games and will be coming in and out of the team.
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“He played as the central striker against PSV and did ok but he’s a player as much for now as for the future.”
All eyes will be on whether Martial can continue his goalscoring run in United’s weekend EPL clash with Southampton on Sunday.