Board Thread:Naruto Discussions/@comment-25516007-20141008201906/@comment-26302001-20141026221759

Jiraiya was shown to have a contract with the toads way before he even had Nagato as a student, it was said already Jiraiya had the imperfect sage mode since his teens onward but did not use it often because it made him ugly. Itachi was already 95% blind when he started fighting Sasuke and was already sickly as shown in Kisame's flash back, Sasuke in no way truly defeated him at anything.