Lewis Dunk’s header was the Brighton captain’s fourth goal of the season
Brighton claimed a vital victory in their quest to avoid relegation from the Premier League and left stuttering Southampton still nervously looking over their shoulders.
Leandro Trossard’s emphatic finish settled an entertaining Sunday lunchtime south-coast contest, Danny Welbeck’s deft touch freeing the Belgium winger to stride into the box and lash home.
The Seagulls had taken an early lead through skipper Lewis Dunk’s powerful header from a corner before Che Adams’ close-range volley ensured the Saints headed in level at the break.
Adams came closest to a second equaliser for Southampton, still without injured leading scorer Danny Ings, but he was brilliantly denied by the outstretched leg of Brighton keeper Robert Sanchez.
Victory halted a three-game losing streak for Graham Potter’s Seagulls, who climb a place to 16th above Newcastle, three points clear of 18th-placed Fulham and with a game in hand.
A 10th defeat in 12 league games, meanwhile, keeps Southampton in 14th, very much in the relegation mix, although they still have a seven-point cushion over the Cottagers.