No one has really tested City's defence yet. The one team who could got their most potent attacker sent off, and Chelsea lost Morata early today.
I agree they are a good team, but Guardiola has been incredibly lucky so far.
I was one of the first to think that Guardiola's arrival will change things, but I genuinely don't think this City side is all that good. They attack with width and numbers, and were luring Chelsea out before exploiting spaces. They have very few players who can win the ball back without fouling, and they leave huge spaces behind when they attack. I am sure Mourinho will have a plan to stop them, and we will get the space behind their full backs on the counter. I am confident we can beat City.
It's matching the flukey wins against Liverpool and Chelsea that is going to be a problem. Mourinho needs to be at his best.