Graham Potter’s terrible start as Chelsea head coach continued as James Ward-Prowse’s superb free-kick earned managerless Southampton a shock 1-0 win at Stamford Bridge.
Ward-Prowse successfully converted his 17th free kick goal just before stoppage time in the first half.
Substitute Conor Gallagher was denied by Gavin Bazunu’s outstretched fingertips deep into stoppage time.
Southampton remain bottom of the Premier League but this result will give them a glimmer hope in their survival hopes.
Chelsea’s attack was strengthened in January, but the Blues have now only scored twice in their last six games and stay 10th in the table.