Board Thread:Boruto Discussions/@comment-38812954-20190920230637/@comment-1210805-20190921130546

Sasuke's exhaustion can be explained by all the dimension hopping he's been doing recently. Just tracking and catching up to Naruto and Jigen likely took a lot of effort. The thing that confuses me is why Naruto never shares his chakra anymore. He gave it to everyone, including Sasuke, in the war, and we saw how much of a boost that could be.