Eddie Hearn believes the stardom of Conor McGregor has the UFC on edge. McGregor is the biggest star in MMA. He has broken PPV and live gate records for the UFC. While he currently isn’t a champion, the “Notorious” one still rakes in some serious green for the top MMA promotion. So, why would Matchroom … Continue reading Eddie Hearn explains how Conor McGregor turned into “a nightmare” for Dana White and the UFC