The problem we have is we face United, Napoli and Arsenal next all within a week. Even if he misses a week, that is one mighty week to be missing with injury, especially considering we don't have a comeback date for Gvardiol yet either.
John has only just come back from a lengthy injury himself, so what was he thinking going off to England and trying to play another 2 games so suddenly. Rest and recover, take it easy you plank. Play the long game.
A lot of pressure on a massively out of form Dias and a young inexperienced Khusanov to be holding our back line together against 3 teams we could quite easily lose against if we carry on as we are.