Yeah I have only had one player get a serious injury, and it said he was out for 11 days. I clicked on the + to see how many reds it would take, and it was 5 for 1 day faster, 9 for 2 days faster, 12 for 3 days faster, 14 for 4 days faster, and then 15 for entirely healed. I don't know if my facilities have any effect though.