He didn't.
It's in the imagination of Sauce fanboys.
Academy
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begin shippuuden
idk any others...
'Valley of the end' is the only confrontation between Naruto and Sasuke, which can be counted as an actual fight .
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[Knife hit naruto GG ]
Those are the only 3 i can currently remember.
respectfully disagree with me .
Ahahah its funny when fans make up that crap. Cause the characters also only acknowledge themselves as this their second time fighting XD
That kunai wasnt his. It was Sakuras. It wasnt a fight either. Just Naruto saving Sakura.