QUOTE (Jenksismyb**** @ Oct 10, 2012 -> 12:27 PM)
Someone who's an orthopedist tell me i'm wrong, but I thought with ligament tears like that it's really not about just giving it rest. The more work on that knee you do, the better. Obviously you don't want to overdue it, but if he's back to a point where he can cut and change directions and everything, and it's not swelling or painful, you're really not increasing your chances of re-injuring the ligament simply from him playing basketball.
I don't think chances of reinjuring the ACL are very likely at all, though I'm happy to be corrected. There is just a serious need for reacclimation, strengthening, etc in the whole lower body. I'd imagine the only real concern with a too soon concern is a mixture of injury risk for other parts of his body and more likely low effectiveness.