United's fitness problems didn't start this season. We had a plethora of injuries last season. Most of them muscular, which suggests conditioning and load management issues. If you look at the injury record last season it was pretty miraculous to achieve promotion and a cup semi. If I was a player at United I'd be worried having United manage my body under the previous regime. You pick two or three similar injuries up and it can follow you the rest of your career. A recurrence here, a recurrence there. Detrimental...
United should be factoring this all in when considering contract extension. You have to control the controllables and accept that the damage is done with some of these players. Get players in with good age and injury profiles and get their bodies ready for next season.
It's very difficult managing this squad short term. We are playing players in games they should be benched or rested for, and benching players that should have their feet up to avoid injury. We Also have a sizeable injury list. It's too late now. As absurd as it sounds, I'd be shocked if we weren't 5-10 points better off if we'd sorted these issues out before the start of the season. That's the sickener.