And we all know after that fight, he beat Donaire by knockout and same with Butler.
So he is still getting stronger and smarter in any fight and keeps on progressing. So for sure he will know a thing or two against Fulton because he is a great fighter. Inoue has that ability to absorb every strengths of his opponents.
Yes, but we haven't seen his chin tested early though, it was just Donaire who really broke the barriers literally when he fought Inoue the first time. He broke his orbital bone on that fight, but still Inoue tapping on his mentality to even become stronger in the later rounds even if he has suffered that.
And then he get that experience, put it in his shoulders that's why the next time he fights Donaire it was a different result or any other boxer that he fought after that ended in a knock out win for him.