There was no PIS, it was showing how Naruto was also too tired to pick his feet up enough to avoid tripping on a rock...Sasuke can't beat Naruto without his Sharingan. Naruto is able to completely stale with Sasuke's Skill in Base as shown in VoTE2, also, in that fight, you have to remember Naruto was already Low on Chakra as stated and not fighting seriously Against Sasuke until Sasuke pulled out Indra's Arrow. Without PIS, Sasuke Lost here:
You must be registered for see images
I'm not gonna say Naruto Stomps Sasuke Unholy, but Naruto would Mid Diff Sasuke Just like he did Toneri.