Martial was superb at St Mary’s, scoring a memorable brace in his first start in the Premier League.
Coupled with his debut goal against Liverpool earlier this month, expectations have skyrocketed for the 19-year-old.
However, van Gaal insisted fans shouldn’t get too carried away with his performances.
“In three matches he has shown a lot. I am very happy with him but we and he have to keep our feet on the ground.”
Martial has certainly made a stellar start to life at United but van Gaal is right in saying that patience will be key with him. The good displays will not last forever and there will inevitably be a time when things are not going the striker’s way. It is important that supporters show patience with and back him when it does come along.