there is a picture of it online though i dont have it on here. it was clearly helmet to leg. it was spearing, but not dirty. 11 players were flying down the field to make a play and an unfortunate hit happened. caldwells blocker, #18, missed his block and karl flew over him trying to hit caldwell in the side and bring him down. caldwell turned away from the pile and ran right into karl. technically, it was a spear, but not dirty.
as for the break, swamp gas had a topic on it and some were talking about how it looked like it was on the neck of the bone and not midshaft. a midshaft break would be ok and the bone could reheal by itself and not require surgery. since it might be the neck, it would require immediate surgery because it cant heal by itself. this could potentially affect his career, he will most likely not be close to as good as he was before the injury, and there is a very slight chance that he may never play again.
as for u, int, maybe u can get hit by a train and burn in hell. im a ut fan through and through, but that is low class and its embarrasing to see fans like u.