Board Thread:Naruto Discussions/@comment-34700383-20180829185752/@comment-34700383-20180903011958

Sasuke never sealed the merged chakra inside himself. His susanoo isn’t his actually body Nor is it the husk of the juubi.

Secondly, there is no example of sage mode being achieved prior to senjutsu being gathered. Why people would suggest kishimoto threw away the mechanics of sage mode during the war is beyond me.