The striker has been a big hit at Old Trafford since arriving in a big money move from Monaco in the summer, with comparisons to Thierry Henry a regular thing.
He could miss this weekend’s clash with the Gunners at Old Trafford though, having picked up a hamstring injury before the 5-1 Europa League win over FC Midtyjlland.
And it seems Wenger will be keen to see him miss this game as well, admitting that he is a player who can make a big difference.
“He’s a player who can make a difference from anywhere,” he told the Independent.
“He can take a ball in the middle of the park, take it past two or three players and create differences.”
“He has had a big impact at Manchester United, and over a longer distance it will be a fantastic buy. I was surprised when Monaco sold him so quickly because if you had kept him one year more he would not, at 20, have lost any [value].”
While Wenger does not appear likely to come up against Martial on Sunday, he is likely to be equally keen to avoid facing youngster Marcus Rashford.
The 18-year-old was thrown in after the Frenchman’s injury and became the star of the show in the 5-1 win over FC Midtyjlland with two goals on his debut.
His display was all about pace and power, and Wenger is sure to be hoping not to have Per Mertesacker, who is notoriously slow, come up against that kind of raw pace in such a crucial game for his side.