Hopefully it's just a bit of bruising or something like that and they are just being careful. Anything more and we might have to look at Finch Farm and some of our training methods (and the fitness staff involved) as @MikeH72 said as this keeps happening time and time again under different managers and DoF's.
Finch Farm mate it's...cursed apparently built on an old Indian burial ground, next to the Hirses rest.