Board Thread:News and Announcements/@comment-32457608-20170702134950/@comment-9782468-20170713031929

Naruto recognized it was a Genjutsu and tried to release it, but failed.

You don't just say release, you have to control your chakra and disrupt it to undo what the opponent is doing to it. Naruto gave an effort but Itachi still outclassed him