I don't think so as I've seen others have something similar, including Datsyuk. I'm not even convinced it is a 13. The reason I don't think it's Kozlov is because there is clearly a letter of some sort missing from what you see in every other autograph of his I've seen.
Edit...can't find the Datysuk one I was thinking of, so maybe I'm off there....but Datysuk has some crazy different autographs.
Edit again....so Kozlov is the closest match so far, but I still don't think that's it...it's killing me and I'm not sure why. I'd love to get some sort of confirmation
I think he probably forgot the K in a hurry.