Manchester City v Chelsea: Roberto Di Matteo's legend has lifted us, says Petr Cech Di Matteo, a midfielder at Chelsea between 1996 and 2002, has brought some calm to the dressing-room, restored senior players such as Frank Lampard and Didier Drogba and introduced a successful 4-2-3-1 system. The team have won all four games under him. We've done well with him as manager and hopefully we can extend that to end of the season. Sometimes you have a great manger and things don't go well. Sometimes you have someone who just comes and everything changes. It's a matter of luck and football is crazy like that. I still think that Andre is a fantastic manager, full of knowledge about football. He will always be successful because he really knows about the game. The problem was that when we played on the pitch we didn't have luck and we didn't play well. That's why he left. We know the next two weeks could be absolutely fantastic. We're in the quarter-finals of the Champions League, the semi-finals of the FA Cup and after our next two league games we could be third."" Chelsea visit Manchester City on Wednesday and host Tottenham Hotspur on Saturday. City are not going to be so happy because they got knocked out of the Europa League and they lost the first spot in the League. Wednesday will be interesting because it's a must-win game for them and because we want to close the gap to Tottenham. City had a good start to the season. With a few bad results everything looks different but there is still a chance for them to win the league. We want to stop this happening. We have the belief that we haven't had the last word yet. Cech believes that the experience in the Chelsea dressing-room will be invaluable. We've been together through so many different situations in eight years. We cope with difficult situations quite well.