None of us know how healthy he is. I suspect his knee is fine and he is as healthy as he has ever been. But who knows? What does concern me is what you eluded to-namely his vision. He seems to have made up his mind before the play begins to run to the hole that he is supposed to go through. The truly elite runners are capable of finding space wherever that might be. One of his touchdowns was the perfect example. There was a huge hole on the left side but he chose to leap up and into stacked defenders-scoring -barely. Had he gone left he would have been untouched.