I Didnt Make This it is from "Narutoblitz"An analysis of Mangekyou Sharingan and its relation to the Nine-Tails:
Predicate 1: Some of the Uchiha are pathological liars or sociopaths, thus only the actions can be 100% true
Predicate 2: Strength comparisons between characters are based on upgraded power, training, intelligence and tactical situations (current battles)
Predicate 3: The past is a good indicator of the future
Predicate 4: Merchandising information can be trusted for purposes of arbitrary versus threads
Let's consider the manga evidence...
Evidence A: Obito extracted an unwilling Kurama through use of his Mangekyou
Evidence B: 3-tomoe Sasuke surpressed half-strength Kurama
Evidence C: Uchiha Madara used EMS Sharingan to control Kurama and place him under genjutsu
Evidence D: Kurama is able to be genjutsu'd by those with M.S. or E.M.S.
Conclusion 1: Sasuke can control the Nine-Tails chakra at least as well as Madara, meaning he can extract Kurama and place him under genjutsu once the Yang chakra returns to Kurama
Conclusion 2: Sasuke can possibly cancel KCM and BM entirely, or turn Kurama against Naruto by using Tsukuyomi
Circumstantial Evidence A: Sasuke defeated Naruto at the Valley of the End
Circumstantial Evidence B: Naruto is currently tied up protecting the alliance, fighting the Juubi and has to deal with Madara and Obito, thus he is not at full-power
Circumstantial Evidence C: Seen above, Naruto had to train to control half-chakra Kurama. We have no reason to believe Naruto can arbitrarily handle full-chakra Kurama out of the gate
Circumstantial Evidence D: All three databooks place Sasuke as stronger than Naruto
Circumstantial Evidence E: Many manga events suggest Sasuke is considerably more intelligent than Naruto and has been involved in more life-or-death fights. Sasuke has an expressed interest in killing Naruto, whereas the opposite is not true
Circumstantial Evidence F: In their most recent confrontation at the bridge, Sasuke was holding his own against SM Naruto despite being nearly blind and fighting Ay, Mizukage and Danzo
But this really Confused the crap out of me!!
But I already knew about the nine tailed fox being taken over, from Sharingan.