Every Season Man City are very tough rival for other top competitors and they destroy every team every time. This season again Man City opened their account in EPL with a comprehensive win and tell others that they are Previous champions of EPL and strong contender to win this season.
Manchester City is a classic contender for the title and only mistakes from the other teams that allow it to stay the first. Several times Manchester City was running behind other teams like Arsenal but at the end they jump in the first place and win the title.
Liverpool for example was annoying Manchester City but they dropped behind. Chelsea and Manchester United are no longer close competitors. Arsenal used to be the direct rival of Manchester City these years but still couldn't pass them.