Chelsea boss Jose Mourinho hailed goalscorer Diego Costa after victory over West Ham United.

Costa fired his 13th goal in just 15 Premier League games since his big-money summer move from Atletico Madrid.

Chelsea manager Mourinho believes the Brazil-born striker is continuing to blossom in a new attacking set-up at Stamford Bridge.

"This is (Cesc) Fabregas football, this is (Eden) Hazard football, this is Willian football, this is Oscar football," said Mourinho.

"Diego is adapting to that because in Atletico he was a different kind of striker, but even Diego is adapting well to that football we are playing when we have possession of the ball.

"One more match to the end of the first run, and that's right (for us) to finish first. This is the football of the team that leads, and leads with all the credit they deserve.

"We are playing very, very well, so it's the football that can put the team as a leader and clearly as a title contender.

"But we've only finished the first lap and there's still plenty more to go."