After an underwhelming first-half at Craven Cottage, Martinez popped up in the 78th minute to secure all three points for Ruben Amorim’s men.
Amad Diallo thought he had made it two deep into added time but it was ruled out for offside by VAR, with the clash ending in a 1-0 away victory.
Fulham had a number of chances and were arguably the better team on the night but United ultimately made them pay for their wastefulness
The result has moved United up to 12th in the top-flight table and they will be hoping to now kick on under head coach Amorim after a slow start.
