User blog comment:Mejiaj1/Luffy wants to defeat all the Yonkou? My thoughts about it/@comment-25485316-20130124051635/@comment-5896530-20130124215007

Shanks did match him in the short clash they had... And Kaido apparently clashed with Shanks and matched him... ( I am not saying that in an all out fight they would still match him though since he was indeed the strongest man in the world )