"Having known him a long, long time, it's hard to say, hard to watch. I had to live through a lot of it on my own, as well," Duval said. "I think that injuries have really broken him down, his physicality, and I think through that, mentally. And once you get scarred mentally, it's a hard thing to come back with. It's a funny thing how memory works -- I'm not a psychiatrist, they could explain it better. But replacing short-term memories is a very difficult, trying process, and that's what you have to do at this point, and it takes a long, long time."