The 2009/10 double winners endured a tough pre-season but kicked off the defence of their Premier League campaign by hammering the newly-promoted Baggies with a Didier Drogba hat-trick, a brace from Malouda and one from Frank Lampard. The French midfielder told ESPN: "We are champions and we have to improve what we did last season. "We had a great record and scored a lot of goals but it's a new season and we have to work harder and be even better than last year. "It was not easy at the beginning because we had a difficult pre-season, to score early in the game was most difficult thing to do and after that we had to carry on to score more goals." Drogba, who claims he is feeling fitter than ever after a hernia operation in the summer, said: "I'm really happy with the way we played, we had a difficult pre-season. We all came back at different times but we are winning and it is a good start." Chelsea boss Carlo Ancelotti said: "I am very happy because we played a good game, we showed good football. We were not happy about the four defeats in pre-season, but we started well and that is the most important thing." Albion boss Roberto Di Matteo told ESPN: "The second goal was a bad time, if we can go in at 1-0 there is still a chance for us, so we have to learn quickly. "We know there is quality, so we will keep working on it and we will improve. We will pick the players up, this is a tough place to come."
