8 first team players all out injured, quickest return is 3-5 months for one of them.
loads of knee ligaments and a couple of broken foots, surely this is a bug or summat guys?
Go to the Medical Centre, and you will see a list of players who are at risk of injury and why.
You will see who is at most risk of an injury, e.g.
Very High Injury Risk
High Injury Risk
Increased Injury Risk
You will also see the reason for the injury risk, e.g.
Recent Injury
Low Match Sharpness
Match Fatigue
You probably just need to rest your players more if they fall into the injury risk categories, or only play them for a portion of a match if they lack match sharpness.
Disclaimer: I'm not an expert at this game, there may be other factors, such as around training.