Well ofcourse he isnt invinsible...such a thing doesnt exsist. It baffles me though some peoples stance on things. Rashad is confident, Jon is cocky. Rashad used to train with Jon and has an advantage...Doesnt Jon have the same advantage as a matter of fact a bit more. Hear me out, when you see how someone is able to control you, you know how to train and what to work on. But according to Rashad he was never dominated like that so he has never felt the level of Jon's talent. So as the "practice" thing goes, Jon actually has more to draw from than Rashad.
Also people saying the Jon has this Aura, but Shogun, Rampage, and Lyoto all thought they had Jon's number and none of them seemed phased by this so called Aura. I respect Chuck's opinion and maybe this will be Jon's toughest fight but every fight since the Bader fight has been his toughest fight, thats what being Champion means.
I against I,
flesh of my flesh,
and mind of my mind,
two of a kind but one won't survive,
my images reflect in the enemies eye,
and his images reflect in mine the same time
MosDef " I against I"