During lacrosse season (college), my body takes a beating from body checks, particularly my side delts and triceps. For a day or two after games, my shoulders are bruised up, slightly inflamed, and tender to the touch. This is not damage from overuse or muscle fatigue, simply contact. I was hoping to gain some insight into whether or not it is OK to train these muscle groups directly during this time. I had a game yesterday and my right delt is bruised to the point where it hurts to lift it laterally, but i trained chest and shoulders this afternoon and suffered no decrease in performance in any way. I am curious if there are any reasons why I shouldn't train after game day.