Unless Chelsea's winning mentality changes after the international break, then we can we can be hopeful that they can do something in their UEFA Champions League quarter final encounter with Real Madrid because for now, don't see them as major contender for the biggest football trophy in Europe.
The owner of the club must be decisive in getting another manager that can drive the Chelsea team to victory. The current manager is just clueless and doesn't have a specific style of play. It seems he does select 11 players and send to the pitch telling them to do whatever they can do to win the match and you can't play a club like Real Madrid with that mentality
Although Chelsea players improve their mentality, I am not sure they will win against Real Madrid. Real Madrid squad quality is clearly better than Chelsea squad. They also have a better coach, Ancelotti is an experienced coach for UCL and he often wins the trophy. It is very different with Chelsea coach who has too many problem currently.