Long term injuries are the worst. Had a guy with a broken leg. One of my best players. I sold him easily and so that is the upside of a good player going down for more than 15 days. Friendlies seem to be OK with my friends. I don't ask for them and since I started boosting my fitness skills, I have had very few injuries through training. I always have short term injuries with my games but since the fitness is up on the others, I can play a guy out of position and he shows no increased fatigue.