#2 Liverpool have shown cracks in their armor
Liverpool have started the season almost perfectly, being undefeated so far. Nevertheless, they did lose their first, and so far only, points when they faced Manchester United in late October.
This may seem like a minor issue, but it is not. Liverpool have shed blood and Manchester City will be bolstered by it. By drawing against Manchester United, Liverpool showed that they are not invincible and that there are a few cracks in their armor.
Psychologically, this is a significant element for both teams. On the one hand, Manchester City will feel more confident that they can defeat Liverpool, and on the other, Liverpool will be now aware that they will eventually drop more points during the season.
Furthermore, Liverpool have frequently gone into half-time trailing this season, something Jurgen Klopp himself has admitted is a problem. Though they have come back to win the majority of those games, can they do so against a team like Manchester City?