#2 Marcus Rashford
The Englishman started in the No. 9 role but looked isolated in the opening stages of the game. That was when Solskjaer decided to opt for a False 9 and put Martial and Rashford on either side of Mata. With a proper No. 10 feeding him, the Englishman began running at the defense with intent.
Rashford's combination of speed and trickery can unsettle the best of defenses. But his biggest threat comes from counter attacks. And this was exactly how he helped break the deadlock in the 28th minute.
Holding on to a glorious ball from Luke Shaw, Rashford ran beyond the Watford defense and noticed Foster out of his line. The Englishman then had the presence of mind to life the ball beyond the onrushing keeper and into the far corner.
United took control of the game after his goal and never let go of the reins. Rashford continued to threaten the opposition with his movement and speed. And United used the advantage gained from his fine finishing to win the game.