Diego Costa’s sublime strike sealed Chelsea’s 2-0 success against Southampton on Sunday as the Blues chalked up a fourth successive Premier League victory.
Costa doubled Chelsea’s lead with a fine finish from 25 yards after Eden Hazard had put Antonio Conte’s side ahead early in the first half at St Mary’s.
Inflicting Southampton’s first home league defeat since February gave Chelsea four league wins in a row for the first time since April 2015, when they were on the verge of lifting the title under Jose Mourinho.
While it is too early to predict another Chelsea charge to the title, the Blues have hit a promising vein of form since Conte switched to his preferred system with a three-man defence.
Their win on the south-coast lifted them above Tottenham into fourth place in the table and within one point of leaders Manchester City.
Southampton remain in mid-table after a first defeat in six league games stalled their recent fine run.
“I’m very happy after this performance. I saw great commitment and great work rate with the ball and without it,” Conte said.
“For the fourth game we keep a clean-sheet. It’s fantastic but it’s early for us to speak about title contenders. We can improve a lot.”
After making a host of changes for the midweek League Cup defeat at West Ham, Conte returned to the line-up that thrashed Manchester United last weekend, which meant captain John Terry was back on the bench.
For the all focus on Terry’s omission, it was the presence of Hazard, who didn’t start against the Hammers, that proved the most significant team change.
Just seconds after kick-off, the Belgium midfielder underlined his threat with a clever run and cut back on the right side of the penalty area that ended with Costa unable to prod past Saints goalkeeper Fraser Forster.
Southampton boss Claude Puel should have been well aware of the need to stifle Hazard after working with the Chelsea star when he was a teenager at French club Lille.
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