It seems we have a fanboy here.Itachi will win easily even if naruto goes to sage mode. Please don't just say naruto will use rasen shuriken he will get his ass kicked before doing so. plus do you think itachi will be strong only if he uses ms. Just think guys what made itachi to be anbu squad leader at the age of 13. Is it his ms? think!!!!
In the tittle says that itachi doesn't have MS which means that he can't use amaterasu in this fight, If I remember correctly you can only use amaterasu if you have MS or EMS.actually when naruto is on SM Genjutsu has no effect.. but Itachi has Amateratsu which is very fast and naruto doesn't realizes that he is dead
He would win but not easily, remember itachi is very smart.Naruto wins easily.
Sm naruto is faster and stronger then Itachi.
He have Frs and all his clones while Itachi have some Katon jutsus.