Well I won a league match today and since my next one was around 30 hours away I went for a bit of extra post-match training.
I set training or friendly game at least 1 rest period (3 hs) after a game.

Today, 4 players were injured, including 1 GK, 2MC & 1 AML/AMC. All are out for 3 days except 1 MC who is out for 4 days. It seems forcing me to use red packs.
Sometimes I just leave one player (less useful) injured or if it hapened in the morning , I 'm fixing him late in night maybe to "cheat" the program . Well, I couldn't figure out anything .