The Reds boss has frequently stated he’ll make full use of his squad to ensure the best possible chance of success in the three competitions still up for grabs.
But that doesn’t mean players are happy to be left out each week – and that’s just the way Sir Alex wants it.
When asked by MUTV if he was finding it easy to rotate his squad, he replied: “No, it’s very difficult at the moment. I have a lot of disappointed players.
“Against Real Madrid they all wanted to play and that’s fantastic – it’s a measure of their faith and confidence in themselves.
“And I thought they acquitted themselves well against Reading. Their hunger and attitude to the game was great and we deserved to go through.
“At this club, and particularly in the situation we’re in at the moment, anything can happen in the run-in. Players can suddenly find themselves playing in a final or an important league game because that’s the squad I have.
“I think they sense this could be a big year for them.”