The Hammers looked set for the semi-finals until Martial netted in the 83rd minute to earn Louis van Gaal's side a replay and maintain a chance of silverware this season.
Martial's wife Samantha, who regularly attends United games in support of her husband was joined by fellow WAGS. Daley Blind's girlfriend Candy-Rae Fleur, Juan Mata's other half Evelina Kamph and Morgan Schneiderlin's partner Camille Sold were also in attendance at Old Trafford.