United trailed in the opening stages at St Mary's Stadium following Jan Bednarek's header before Alexander Isak's quick-fire brace turned the contest in the visitor's favour, with the Swedish frontman moving into second place on the club's all-time Premier League goalscoring list.
Sandro Tonali doubled Newcastle's advantage shortly after the restart, the Italian's first Premier League goal since scoring on his debut against Aston Villa in August 2023, as Eddie Howe's side deservedly returned to winning ways on the South coast.
Serena Taylor was there to bring newcastleunited.com this gallery of images.