Guardiola respected Mourinho's ability to get results, but he never liked him as a person and he certainly never feared him the way he fears Klopp teams. The Guardioa-Klopp rivalry is a great thing to watch as the men clearly have mutual respect and genuinely admire each other's style of football.
The Man city match will be fascinating. Liverpool merely need to avoid defeat, while Man City need to win to make up any ground. I suspect that Klopp is not going to quite go for "heavy metal football" in this one, but instead try to exert control and force Man City to take risks. It won't be 10 men behind the ball (impossible with players like Salah, Mane, and Firmino on the pitch), but I wouldn't be surprised if he parks a couple holding players in front of a back four, and gives Trent and Robertson less aggressive instructions for their wing play.
I'm guessing a 4-2-3-1 with the usual back four and of course Alisson. Wijnaldum, Fabinho and Henderson will provide a powerful spine, Mane and Firmino underpin the attack and Salah as (nominally) the lone striker. Shaqiri is subbed in after an hour if a goal is needed. Milner on deck and he goes wherever he is needed, whenever he is needed, possibly even starting at right back.
With that group I'd go up against anyone in the world at the moment. With that being said, no team in England is more capable of beating Liverpool than Man City. Should be a heck of a match.