I’m not really in a position to explain either Liverpool or United’s fitness regimes, as I have only snippets of information. I can only guess and wonder. I think there may be something in that Klopp spent a few seasons at Liverpool before he got them to the level we’re talking about, and match stamina and being defensively sound (finding sustainable levels of high pressing) seemed a big part of it. I imagine it takes at least a two to three good preseasons to lift the physical level to the requirements to sustainably being able to play Klopp’s brand of football at a WC level.
It was also easy to see Liverpool struggling like United after the covid break season, even with a longer break than us, they lost 7-2 to Villa when we lost 6-1 to Spurs.
Solskjær’s United where actually better than Klopp’s Liverpool across the board for one and a half season in that period, and if you look at the games played, it is evident that Liverpool’s relative slump in form
did not begin or end with Van Dijk’s much bespoke injury. So I’m guessing the covid years effected their ability to play their style of football to full effect, even if they had a better platform (more preseasons of optimal training) than we had.
All this to say that I’m slightly optimistical that we might see a raise in production from a few of these players who disappointed the most during last season, and even more so next season. Depending on how the Quatar Bloodwashing Championship affects clubs.