Grant Hill reinjured both his legs from overcompensating with the healthy leg. I don't think the left arm is as crucial. Knowing how competitive Wade is, he'd learn to shoot one handed.
I would hope that he sits out but if the man wants to play the man will play. Granted, it'll be a 1st or 2nd round exit, but that's his right.
his shoulder will be fine, no chance any player makes contact with it ever again, actually surprised Battier wasn't suspended
