Eddie Howe made one enforced change to his starting XI. Sven Botman dropped out because of an ankle injury and was replaced by Matt Targett, which saw Dan Burn moved back into the centre of defence alongside Fabian Schar.
An error by Nick Pope gifted the hosts a deserved lead on 27 minutes when the Magpies goalkeeper’s poor clearance eventually led to Evan Ferguson firing home from close-range.
Ferguson doubled Brighton’s lead in the 65th-minute when he curls a shot home from distance. The Irishman then added a third not long after via a deflected shot off Fabian Schar.
Substitute Callum Wilson pulled a goal back for United during injury time.
Here’s our Newcastle United player ratings from a dismal evening at the Amex Stadium:
Arsenal scored four goals in their Champions League thrashing of PSV Eindhoven last week, producing a thrilling display of attacking football, but the most meaningful cheer of the night was not prompted by anything that happened on the pitch. Instead it was a substitution, in the 69th minute, that triggered the game’s biggest outpouring of joy.