Nike Air does make me think about Sanji. But he went out of his way to get a Nike Air logo that cuts up the A, becacuse most Nike Air logos is just the normal Nike one with an Air bellow it, so it could mean a slash for Zoro vs King, OR MAYBE a Nike Air Kick Slash, wich means Rankyaku, so maybe we could see Who's Who using Rankyaku, or even more crazy would be seeing Sanji use Rankyaku.