Board Thread:Naruto 7: Discussion/@comment-24516546-20141107133049/@comment-142748-20141128225834

WindStar7125 wrote: Shak, according to ItachiWasAHero, he read somewhere that Toneri took Naruto's Six Paths chakra, and that forced Naruto to finally use the full Yin-Yang power of Kurama, at the cost of no TSB or Six Paths Sage Mode.

Edit: For Sasuke, bout damn time. :) From the spoilers I've heard, Toneri isn't interested in Six Path chakra, instead using something called the Tenseigan after stealing Hanabi's Byakugan.