Chelsea moved up to fourth in the Premier league table as they recorded a comfortable 2-0 win at St Mary’s against Southampton.
The Blues continued their habit of quick starts as Eden Hazard bagged inside the opening ten minutes with a neat finish.
Diego Costa sealed the three points in the second half, unleashing a curling effort from outside the box that had Fraser Forster well beaten.
The Saints stay ninth in the league after the defeat, their first at home in the league this season.
Ominously for their rivals, Chelsea have scored 11 goals in four games and conceded none, with their three-man defence holding firm once again without captain John Terry.
Early goals in each half did for Southampton, with Hazard setting Chelsea on their way after only six minutes.
Seconds earlier Marcos Alonso had been tormented by Dusan Tadic, the Saints winger turning him inside, out and back inside again before crossing for Oriol Romeu to volley over.
But Alonso recovered his bearings quickly, broke forward and found Hazard, who fed the ball out to Victor Moses on the right.
Setting the pace
Hazard charged into the area, received the return ball, turned Steven Davis on the byline and from a tight angle drove a low shot through Fraser Forster’s legs.
It was the Belgium winger’s fifth league goal of the season, already beating his tally from the whole of the last disappointing campaign.
With Chelsea showing Saints due respect by sitting deep, the hosts went in search of an equaliser and Charlie Austin headed wide while Thibaut Courtois dealt with Tadic’s free-kick.
But Chelsea were a menace on the break, and Hazard almost had a second when he ran onto David Luiz’s through-ball, jinked along the edge of the area and curled in a shot which Forster got down well to keep out.
Moments later Davis lost possession in midfield and Nemanja Matic played in Costa, but his finish was too close to Forster.
After the interval N’Golo Kante’s raking cross-field pass found Alonso, whose low cross was almost turned into his own net by Jose Fonte with Hazard lying in wait.
But Costa all but settled the match in the 55th minute when he collected Hazard’s short pass, pushed the ball away from Cuco Martina and curled a stunning effort into the far corner.
Saints, to their credit, did not stop probing for a way back into the game, almost found it when Steven Davis’ header dropped onto the top of the crossbar before Austin had a goal chalked off for offside.