Hum, so injury is dependent of the date? This is quite disturbing if it's true.
I did ask myself that question, but on the Grass quality description, it doesn't say anything about it being only applicable to matches, or not applicable to training.Apparently, pitch condition only affect game activities and not training. You dont train on your main pitch anyways, there is a training facility for that and it mentions nothing about grass quality or reduction of injuries. Maybe Nordeus can give their explanation of that, but I doubt they give a ****.
But in any case, I doubt that 20% reduction, I have, was helpful in any mentionable way.