Board Thread:Versus Debates/@comment-30168027-20161030085406/@comment-25643824-20161213193002

@9 Arts dragon can you provide the link, manga page, anime etc, where it was stated that naruto stayed stagnant and sasuke kept improving since the last.

If you can't I'll take was the movie showed as canon. Which was a sasuke getting severely hurt in a one on one situation and him telling boruto was not able to surpass naruto. And again this suggests effort to do so on his part.