User blog comment:Yesxirb22/Mr 1 PAST, did he get a fight with Jozu?/@comment-24850639-20170526154402

Absolutely. Or at the very least, he knows of Jozu.

I find it hilarious that people are willing to believe that he would just randomly say that because [insert example of Oda's foreshadowing], or because diamond just so happens to be harder than steel, yet him having fought Jozu (who's part of a crew that hasn't been known to kill ANYONE) is just out of the question. There's a LOT of substances that are harder than steel, and there isn't some natural progression of density among them that would cause him to jump to diamond next. Finally, people don't cut diamond for recreation.....so why else would he ask that except in the context of fighting someone who has a diamond ability?