Michael Chiesa challenges referee Mario Yamasaki to grappling match

On June 25, the UFC touched down in Oklahoma City, Oklahoma with UFC Fight Night 112.

In the main event, Kevin Lee and Michael Chiesa went to war in a compelling clash of lightweight contenders.…

Since then, Yamasaki has defended his stoppage, while the Oklahoma State Athletic Commission (OSAC) has denied Chiesa’s appeal. Despite this, Chiesa still feels he was shorted, and is harboring quite a bit of resentment against Yamasaki. On Monday’s edition of the MMA Hour, the lightweight even challenged the referee to a September 30 grappling match.