The statistics I read on the internets from Google scholar indicated aprox. 40% chance of complete success (total return of functionality) and about 75% chance of a return that includes diminished functionality. It wasn't explicitly stated, but I think that final 25% would indicate that his knee will be screwed beyond usability by pro athlete, and he limps around in pain for the rest of his life. I've also read several places that the first year back is not indicative of the totality of recovery. I expect if he plays more than 50% of snaps next year without a limp of having to go to the sideline for treatment every other series will be a positive first step. Year 2 will be when you start to judge the final outcome of surgery. An ACL like Dante Fowler would have been a much less invasive repair these days.