Manchester United suffered a humiliating defeat at the hands of a rampant Brighton at the Amex Stadium - a result that confirmed United would not qualify for next season's Champions League.
Ecuador international Moises Caicedo put the hosts ahead with his first Premier League goal in only his sixth game, with a low 25-yard strike after United's Alex Telles had failed to clear.
The visitors, in interim boss Ralf Rangnick's penultimate game in charge before he is replaced by Erik ten Hag, fell apart in the second half, conceding three goals in quick succession.
Marc Cucurella fired into the roof of the net from Leandro Trossard's pull-back for the second, with Trossard setting up Pascal Gross to calmly steer in a third.