Originally Posted by Myth
I agree if minato said this then it must be something big.. and i seriously doubt they fought minato isn;t an idiot if he saw his movements being countered he would know that it was a sharingan user.
I think he meant something way bigger and deeper when he said that.
I agree cause Minato seemed really worried about him. He is also part of the reason i think Minato wanted to keep the fact Naruto was his son a secret.