I think I've had more injuries than usual at the start of this season, but not recurring injuries to the same player. What I do is wait until the next day to heal him, and then I only start using him again the day after that, so all in all, he misses only the remainder of the first day and the whole second day. I allow the system to run the daily maintenance so that they can log that he's injured and then that he's fit, you can never be too careful.