Beating Chelsea is a task that no side has managed this season, and City will have to do it in Mourinho’s own back yard if they want to keep their title.
Mourinho has only lost one Chelsea game in the league at Stamford Bridge – but will have to lose another one if Pellegrini wants to oust them at the top of the table.
That would be a vital three points for the Citizens and it is fair to assume Mourinho’s side would drop a couple more throughout the season.