i feel Naruto didnt really loose to sasuke in that fight... if anything it was a Draw... Listen
so what Naruto was unconsicous after the last attack from sasuke but if you look closely you see that they cancelled each other out and neither attack really effected another... i feel they were both just drained after the last attack thats why Sasuke was back to normal(from the curse mark form) and Naruto was unconcious because he was drained not from sasuke... Naruto was the only one that made any contact (headband scratch) but that fight was a tie i feel
so what Naruto was unconsicous after the last attack from sasuke but if you look closely you see that they cancelled each other out and neither attack really effected another... i feel they were both just drained after the last attack thats why Sasuke was back to normal(from the curse mark form) and Naruto was unconcious because he was drained not from sasuke... Naruto was the only one that made any contact (headband scratch) but that fight was a tie i feel