Martial was introduced with ten minutes left against West Ham United last weekend and sent a powerful message to Mourinho by claiming a goal and an assist.
And with Swansea pressing for an equaliser, Mourinho once again called on the lethal Frenchman and he didn’t disappoint, receiving the ball from Paul Pogba before sliding the ball home for Man United’s fourth.
Speaking after the game, Mourinho was quick to heap praise on the youngster for once again making a difference from the bench.
“The French language connection is there to help him a lot and get to the level we know he can be because the potential is huge.”
“Happiness in our play. It happened to me so much with my teams, you winning 1-0 and you can can concede. There was no need to close the door, just let the horses run freely.”
He may have only played a total of 25 minutes this season, but Martial has already demonstrated emphatic signs of entering that sublime goalscoring groove which, for one reason or another, eluded him last season.
The way he glided so seamlessly into the box was special. That he would score was never in doubt. You knew exactly where he planned to put the ball and there was nothing Paul Clement’s side could do about it. He was majestic, lethal and, for a tiring Swansea, just too fast to stop. And as he wheeled away to celebrate that menacing verve, you could tell, was back.
Martial is clearly enjoying his football again, and rival supporters ought to be concerned.