First of all, set an injury limit per team? Are you guys serious? This is a game, but it's also a busines, players healed through token are an income source for developers, so i don't think that's gonna happen. I am not saying your players are getting injured on purpose, i am saying that i don't think developers will change things to make you happy....
Mubashar, maybe those DR/MR have a high injury prone rating (i am not talking about the Injury prone stat displayed in your player profile, it's ANOTHER stat, wich is hidden), maybe you should get different players to play there..
I suffered injuries a lot last season, i found only 1 way to deal with them without paying: i improved my physio to the max level and i played easy tackling every single match this season, i lost some ball posession (just a little, the difference is not that high as it seems) and i suffered only few medium injuries (about 6 days). That's the only way to deal with injuries without spending credits. Complaining here won't help you guys at all....