It's simple.
The whole football world will be watching.
Pep says in a press conference if one item hits the bus the game is off.
Just refuse to come out of the changing room.
let the PL deal with it. Let them deal with the fall out from TV companies having to deal with their most viewed game of the season not taking place. Let them deal with the cries from Scandinavian and Irish Liverpool fans crying that they've spent a lot of money to get to the game of the season.
City / Pep simply refuse to discuss the topic, just say "we warned you", next question.
The rags have had 2 games in recent years postponed and not one fine from the PL for either of them.
Let the media (if they dare) turn the focus and the heat on to the scouse twats. There will be no apologies coming from the PL / FA or UEFA but condemnation from all sides (again, if the media dare to report it)