Lets say for a moment that the Hidden Sand Village didn't invade the Leaf during the third exam tournament. And Sasuke defeated Gaara in battle. Sure Naruto didn't know how to use the Rasengan back then but he knew how to summon the Chief Toad. Do you think the match would end in a draw since both he and Sasuke were worn out from there matches with Gaara and Neji?
Also do you think they would of settled their differences then and there and Sasuke wouldn't of gone to Orochimaru's.