Manchester United produced yet another poor performance against a buoyant Brighton and Hove Albion side, who had no trouble in collecting another three points from their latest visit to Old Trafford.
Former United striker Danny Welbeck broke the deadlock in the 20th minute when he timed his run into the box perfectly to latch on to a Simon Adingra cut-back and side-foot the ball home past a helpless Onana.
United came close to levelling the scores a couple of times. Firstly when Rashford hit the post with a venomous shot and secondly when they had the ball in the net through Højlund but VAR ruled that Rashford had run it over the by-line in the build-up.
Brighton doubled their advantage in the 53rd minute when Pascal Gross wove his way through a static United defence to score his customary goal in this fixture and they made sure of the three points in the 71st minute when substitute Joao Pedro, on for Adam Lallana, side-footed home from the edge of the box.
United’s consolation came in the form of a long-range strike from young substitute Hannibal Mejbri a couple of minutes later, but it would prove to be too little too late at the end of another lacklustre showing from the Red Devils.
The result leaves Manchester United languishing down in thirteenth place in the Premier League table, with only six points from their first five matches and a goal difference of minus four.