Board Thread:Theories and Speculation/@comment-30303455-20161023144410/@comment-30303455-20161027201213

Thekillman wrote: Considering he was pretty good at genjutsu apparently, he could've hidden his (mangekyou) Sharingan with genjutsu. Especially since it wasn't even discovered he actually had Sharingan until Obito wanted to reveal it. Yap! Another option... :)