Well, i haven't received injury in matches so far, but still my matches were too "intense": after 2 league matches i got 5 yellow cards using easy tackling, i'm sure that if i'd have picked normal tackling, i would probably be here sharing player bans and injuries with all of you.
But the fact that i didn't get injuries in matches doesn't mean that i haven't suffered injuries, i had 2 in daily training: one of them were a DC (quite easy) and also a MR (hard), both using normal training workload.
All of this in 2 weeks, this season is going to be really long...
Guys, i think you should
REALLY consider to spend money improving your physio, and avoid normal/hard tackling as much as possible, we all know that we can't avoid death, but we can make it wait for a while
EDIT:
By the way:
If I buy a player that is hurt. It can help?
For example. player hurt 30 days. When I bought him at 25 days.
Level 2 -> 125%
Reduce? and 5 or 6 or none?
No, it won't. It will only affect the number of days to recover of the players in your team before they get injured.
That is wrong, team physio doesn't work as admim said (or developers meant to work): try to improve your physio and you will notice that injuries are actually reduced. It also happens when you buy an injured player, if your physio is better than seller's physio, then that player's injury will be reduced, i don't know what happens when somebody buys an injured player and the seller has a better physio than the buyer, it would probably suffer the opposite effect, i can't confirm it.
But if you have an injured player and the money to afford a physio improvement, try it! Don't expect injuries to be cut half (unless you max your physio in a single move), but a few days less would probably be welcome