This could be a sign of things to come given his size and how violent his movements and actions are. I could see a Larry Johnson type career...great for 4-5 years then the injuries will catch up to him and he flames out by 30 years of age.
One thing I noticed about his preseason...he doesn't appear like he is going to be an elite rebounder. Maybe he tops out at being LeBron good at rebounding, like maybe 7 or 8 a game, but he won't be great at it. For a guy that has being a small ball center in his future, that's not good.