The Frenchman grabbed the match-winner against the stubborn away side who were excellent for much of the game.
In fact, many would agree United were fortunate in securing all three points as they struggled to get going at all.
Both their goals were scored against the run of play with Martial grabbing the all important second.
Watford hit back in the dying embers of the game but the Red Devils held on for the win.
Anthony initially started on the left-wing but was moved inside after Solskjaer tweaked the formation to try to get his side going.
The former AS Monaco man enjoyed playing alongside Marcus Rashford with the pair scoring both of their side’s goals between them.
It was suggestive of an exciting partnership for the future but it’s temporarily been disrupted by Martial’s injury.
Fans had initially felt that the youngster was substituted off after a fine display so that he could rest after just returning from injury.
However, Anthony was caught on camera wincing as he hobbled off the pitch, meaning it’s unlikely he’ll be able to feature in their next fixture.