Funny I was just saying the exact same thing. His arm looks shot. When the great ones lose the ability to hit tight windows because of arm strength it's over.
It's not his arm, it's his neck. This is how he looked when he first came back with Denver and how I feared he was going to look since I heard about the procedure he had done on his neck. The fact that he played 3 years at the level that he did is truly mind-boggling.
I can't even put into words the respect I have for him to be able to play -- and be great -- through that. I don't think people appreciate that enough.