At this point it's hard not to feel like there's something wrong at your club. Too many injuries, and while this period is one of the worst you had, you've constantly had a number of players injured over the past few years.
I think the club should conduct some kind of overall review, from the training facilities to the medical staff and procedures. Even if it's just bad luck and the club is running smoothly, it'd be wise to make sure of it.
You guys talk about Varane being injury-prone and it's true, he has totally become injury-prone but he wasnt before going to Manchester. All of your major players have gone through some kind of serious injury over the past few years, with Bruno being the exception, he's an iron man.