Che Adams notched a ninth minute winner to earn Southampton the bragging rights over local rivals Bournemouth in the south coast derby.
The striker rose up above the backline to steer a header beyond Cherries shot-stopper Neto in the early stages of the match at the Vitality Stadium.
The victory sees the Saints pull themselves away from the Premier League relegation zone.
More to follow...
Match Facts
Bournemouth (4-2-3-1): Neto, Fredericks (Dembele 83), Mepham, Senesi (Rothwell 77), Smith, Lerma, Cook, Christie (Stanislas 62), Billing (Moore 83), Tavernier, Solanke
Subs: Travers, Stacey, Pearson, Anthony, Zemura
Bookings: Mepham
Manager: Gary O'Neil
Southampton (4-3-3): Bazuni, Walker-Peters (S.