I wouldn't got that far, but it will certainly be something to watch for carefully. He may change the way he plays. Youth will help him. Concussions from slow pitch are the same, right?
Brock has a couple of injuries now that could end up being nagging just by the locations. Broken legs and arms are usually pretty easy to repair but backs and wrists (a long with knees, shoulders and ankles) are some of the worst. I hope his youth serves him well.