Well as it seems they are not injured per se, but just a bit mentally tired and physically not 100 % well. I have been convinced they will be 100 % physically fine till Wednesday that they have to start preparing for the game.
About their momentum not having played or trained normally for the last 10 days? Yes that is a concern though.
About Haaland not firing suddenly, this is crap.
With Real Madrid he was great and had Courtios make 3 amazing saves to keep him out of scoring and he had 2 other chances to score with good shots. He was good at that game. With Chelsea he played 16 minutes on a party game, i mean come on. With Brighton he didn't score but was not bad. Yesterday he didn't play.
So where is the issue?