sasuke defeted নারুত once and will do it again !itachi can kill him too but him self is dead sasuke killed him in each ways sasuke SASUKE YES SASUKE CAN!
Well the 2brothers uchichas are quite strong but one thing is sure they can't beat নারুত sasuke did it once in beating নারুত but if u observe vary well in that episode u will see that it's not in the mind of নারুত to fight against sasuke all his purpose & desire was to bring sasuke backhome but the idiot obses in avenging his clan bounce against নারুত believing what his brother told him that if he hate so much & kill his loving ones he could awaken the mangekwusharingham for that he decided 2break the bond between him & নারুত which the linked together for being lonely & without parent, in this case নারুত got no other obsion than 2fight against him thou নারুত didn't fight real fight with him as he normally do with other adversaries cus his intention was to try to cool sasuke & convince him to comeback beside নারুত had not improve to the level of sasuke দ্বারা then.always remember when they were small & were still student at school sasuke could throw the kunai আরো than any other student in the school he can replicate himself & hide the real body আরো than others could do but নারুত cant do non of those things দ্বারা then. The reason while sasuke was excelent even at his early age is because he always practice with his brother itachi, & নারুত experience in combat দ্বারা then was zero even in there combat at the river u could notice that নারুত doesn't have experience about physical combat & how to use nature ability he was only depending on kyubi but sasuke got experience in all this, so am not imprest if he got the upper hand over নারুত remember that নারুত would have killed him in kyubi mode but bcos the প্রণয় he has in him was beyoung imagination he decided to slow his range toward sasuke. i belive if নারুত fight with determination as he ussually do to other opponent & tearoff his mind that bond he has with sasuke now he had mastered nature ability,sage mode,& had gotten experience in physical combat if he combine sagemode with kyubi he will badly injure sasuke অথবা his brother, u all are withness of what he did to pain & also note that nothing could harm নারুত in kyubi mode all নারুত got to strive for is to know how to dominate & control kyubi as does killer bee to his 8tailedbeast not kyubi having upper hand over him.
