They score for fun and have trampled on all-comers so far but I still have doubts in my mind about how this team defends and I think this Manchester United team has the firepower to trouble them.
The Premier League's top two go head-to-head at Old Trafford in a pre-Christmas fixture that is about much more than just local pride. If City drop points, there's a good chance for United in this race to be crowned champions.
United do believe they have finally got to the root of the hamstring problem which has plagued the France global on and off for the last couple of years.
Happily for Mourinho, sitting deep, packing the midfield and allowing the opposition possession sits exactly into his protocol for away games against top sides, as revealed by Diego Torres in his biography of the former Real Madrid coach, and as practised with stultifying efficiency against Liverpool this season.
Jose Mourinho has been handed a triple injury boost ahead of the Manchester derby this weekend after Phil Jones, Zlatan Ibrahimovic and Marouane Fellaini came through training unscathed this week. City have a new stadium and new players, new management, and you see what is happening now.
"The Manchester derby is a special game", said the 48-year-old, who was speaking at the launch of his autobiography, Russia Winters.
He added: "If United can win both derbies then they will have a good chance of winning the title". It will be a little step for us if we win this game, but nothing will be finished.
"When I played for City they were not the biggest club, they were just OK, and in the derby we would fight hard because United were the dominant team at the time". Now there is a big change.
City are looking to make it a Premier League record of 14 consecutive wins but they go into the game on the back of their first defeat of the season against Shakhtar Donetsk in the Champions League on Wednesday.
Manchester United's Jose Mourinho is the latest to have a try on Sunday and he loves nothing more than setting up a team to subdue and frustrate a big rival. "It is going to be very, very interesting".