What happens when the best team in the world travels to the toughest ground in English football? That is what we will discover on Sunday, with Pep Guardiola taking his in-form Manchester City side to Jurgen Klopp's Liverpool in the Premier League.
On Monday, City were the clear favourites, sitting second in the table and yet to be beaten, with Erling Haaland scoring goals for fun.
Liverpool had just lost to Arsenal to slip to 10th in the table, picking up three more costly injuries, and Klopp was using his press conferences to query the standard of the questions put to him rather than answer them.
Then, both sides were on their travels in the Champions League, with the collective 180 minutes that followed drawing them closer together in terms of form ahead of Sunday's showdown. ALSO READ: Jurgen Klopp sends Liverpool confidence warning to Man City after Rangers thrashing City rested some important bodies in Copenhagen, Haaland included, but were held to a frustrating draw that wasn't helped by Sergio Gomez's red card that left his teammates playing against 11 men for an hour.