Something bigger is wrong than just players being fatigued I reckon.
Salah obviously feels undervalued, and is agitating for a move. There have been similar murmurs about Mane aswell.
Have some of the players lost faith in his decision-making too? Fans are openly questioning him for leaving the defence so threadbare at the beginning of the season but bringing in an arguably unnecessary luxury midfielder, it’s highly possible the players are thinking the same thing.