Coach John Kavanagh wants the MMA community to remember that Dustin Poirier has already felt Conor McGregor’s knockout power in the past. McGregor and Poirier meet for the second time next month at UFC 257 on UFC Fight Island. The first time these two fought was back in September 2014 at UFC 178. That fight … Continue reading John Kavanagh: Dustin Poirier has already felt Conor McGregor’s KO power