But the "foot-drop" isn't a surprise at this stage, said his surgeon, Dr. Dan Cooper, who is “optimistic that his knee itself will be stable and a good knee and he’ll get all his strength back. And I also think he has a very good chance of getting his nerve recovery back.”
That’s because the lateral damage stretched Smith’s nerve “enough to make it go to sleep, but it wasn’t stretched enough to be structurally elongated or visually very damaged” like more severe injuries, Cooper told USA TODAY Sports. There’s normally a one-month lag time before the nerve regrows at all, and once it begins, the rate is only about 1 inch per month.
“He’s had time for his nerve to regrow 2 inches, and the area of where his nerve was injured is 6 inches above the muscle that it innervates,” said Cooper, who’s also the Dallas Cowboys’ head team physician.