Conor McGregor's incredible career explained by one of the men who knows him best! Coach John Kavanagh explains #WhatWentDown during McGregor's incredible rise to become UFC double champ, his clash with Khabib Nurmagomedov and his comeback in 2020! Watch #UFC257: Poirier v McGregor on January 23rd, live on BT Sport Box Office ➡️ https://www.bt.com/sport/box-office/