Board Thread:Wiki Discussions/@comment-1514283-20140911040828/@comment-1512913-20140911103203

Chakra can be many colors, the blackness doesn't necessarily have to do with the natures used. And I suggest you to wait 2 more weeks, Naruto and Sasuke are battling. If Sasuke doesn't have Senjutsu, then Naruto should be able to nullify his techniques and Sasuke shouldn't be able to absorb the TSB. We will have our proof either way soon.