Did you read only once in 10 years?i would like to know,y
itichi sent a crow with sharingan down naruto trought ,,,and for it to b later on in a balttlle with naruto vs itichi it came out,,so y did itichi just didnt implant the sharingan imto narutos eye,giving naruto one sharingan like kakashi.
That way that eye would not have been usless
but shisui eye would have been a good thing for naruto to have.