Smh. If Naruto wanted to use a senjutsu Rasengan in his left hand he obviously can as he's a master sage Necromancer.Sasuke is always Left Handed. He will always use Chidori with his left hand. Or do you also think all of Naruto's senjutsu is in his Yang seal as well?
This answers nothing at all.
Sasuke literally saying To prepare a technique with sage chakra, & the emphasis of his Yin seal shows us where it was coming from. Stop acting ignorant. Or better yet, provide Proof he still has Senjutsu :lol