Board Thread:Theories and Speculation/@comment-31074250-20170318090411/@comment-30168130-20170417020755

well, Naruto has kurama, so bye bye, 90 percent of most genjutsu, nad sauke can tell if a genjutsu is being cast, if any at all, so I don't think that genjutsu is the way... now, that yamanaka thingy seems plausible, but it would have to be SSSSUUUUPPPPEEEERRRR SSSTTTRRROOONNNGGG to even affect those two, plus kurama. and kawaki might've had help, so he might as well be weak AF. there are other possibilities, like Naruto being poisoned by something really monstrous (over time, cuz u cant just poison Naruto outta nowhere), maybe he trapped somewhere (not like a jail, but maybe a place where he's just stuck, and got weaker by the moment), and etc