Chelsea beat Southampton with strong Hazard and sparkling Diego Costa

Chelsea have celebrated today their fourth successive win, while Southampton had their first defeat in six games in an impressive game. Conte has trusted in the same starting team which trashed Mourinho's side last weekend and it has turned out to be a good decision.
Chelsea take the lead early on, as Hazard, one of the men of the match, scores in minutes six the first goal. Tadic tries to equalize a few minutes later but Courtois turns the free-kick away. The Belgian creates a few more chances but fails to score. However, Diego Costa scores in the beginning of the second half (minute 55) his side's second goal, thanks to Hazard's assist. Costa scores almost the third goal, as Chelsea control the game, but fails.
Southampton were controlling the ball but couldn't get through Chelsea's defence, therefore they end the game without a single goal.
It seems like Chelsea, which were criticized lately, are stronger than ever, as they haven't won four leagues in a row since April 2015.
Chelsea's defence has been very strong today and has made an advance for Southampton almost impossible.
Conte's side have climbed up fourth in the league, while Southampton remain.