Fedor may not be able to sub him (though I really think he could - those long lanky arms trying to keep Fedor off the top of him, Fedor would catch an arm easily) but I think he'd use his Sambo (back when he actually used it) to get JJ down to the ground and either pound on him, sub him, keep on top of him, or keep throwing him down as JJ keeps trying to get back up. JJ has great TDD against wrestlers, but he's never experienced Fedor's type of Sambo badassery. So because of that I feel that's where Fedor has the extreme advantage. Especially because we've see it work against bigger, longer, heavier guys than JJ.