Alejandro Garnacho handed Amorim the perfect start on his Old Trafford debut after capitalising on a goalkeeping blunder to score after just 48 seconds in the Europa League clash.
But two goals in four minutes from the traveling Norwegian outfit put Man United 2-1 behind in the blink of an eye, before Hojlund leveled the score with a superb volley just before the break.
The striker netted again shortly after half time with another smart finish, impressing the manager after being named on the bench during Sunday’s 1-1 draw against Ipswich at Portman Road.
Despite a few late scares, the Red Devils managed to jump up to 12th in the Europa League table, just one point off the automatic qualification places.