It’s been more than six years since Conor McGregor and Dustin Poirier first squared off in the Ultimate Fighting Championship, and much has changed since then.
However, John Kavanagh, McGregor's head trainer, believes that Poirier will nonetheless struggle to erase the memory of a first-round technical knockout loss to McGregor at UFC 178 in September 2014. The two men will have their rematch in the UFC 257 main event in Abu Dhabi on Jan. 23.
“I think you can spend a lifetime going to sports psychologists and talking to this person and that person; that’s not going to have been erased from his mind,” Kavanagh told The Mac Life.