Agreed, imo, unless you've had the injury/surgery yourself, or you're at the very least a specialist surgeon in the field, you can never fully appreciate the impact and implications of it, it's a fuckin killer, both physically and mentally, moving in straight lines is fine, but once you start twisting, changing directions etc, it fucks you over, every time, he'll come back, but will be a level or two below at least, and he's a big lad, there's a hell of a lot of weight to distribute on the one knee when he has to.