Chelsea made the first mistake of their season during the week when they let a 1-0 lead in their Champions League match against Schalke slip away, with Mourinho having to settle for a 1-1 draw.
Manchester City were a little more unlucky than their Premier League title rivals, losing 1-0 to Bayern Munich through a late winner from ex-Etihad star Jerome Boateng.
With this weekend’s away trip to City in mind Jose Mourinho decided not to start in-form striker Diego Costa during the week and the ageing legs of Didier Drogba showed that he may just have lost his edge when coming up against the best defenders in football.
We can expect the Special One to take no such chances against City however, with Loic Remy likely to play understudy to Costa in one of the biggest fixtures of the campaign so far.
Sergio Aguero didn’t start during the week for City, which begs the question over whether or not Manuel Pellegrini knows exactly what his best starting 11 is?
Yaya Toure looked off the pace and raised some doubts as to whether he still has the motivation and determination to be competitive at the very top level, and City fans will be praying he’s back to his scintillating best come Sunday.
In truth this is likely to be a game won in the midfield and the key battle will be between City’s duo of Toure and David Silva and Chelsea’s pairing of Cesc Fabregas and Nemanja Matic.
The Citizens badly need three points to stay within reach of Chelsea at this early stage of the season, but with Costa seeming unstoppable at the moment we don’t think a City win is a forgone conclusion. Chelsea have the tools to win it but Jose Mourinho will be happy with a draw away from home. Our verdict? Exactly that. 2-2.