Naruto has yet to use Sage Mode against Sasuke. He unleashed four tails of Kyuubi when he fought him in the valley of the end, but that's about it. He hasn't actually met up with Sasuke since learning Sage Mode.
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Sasuke fights his brother shortly after killing Orochimaru. They both fight at his stronghold, Sasuke wins.
Sasuke fights Naruto (in the nine tail's chakra robe- kinda the nine tail) in episode 128 - a couple later. im not positive when that fight ends- in naruto