Who is Hafthor Bjornsson? Yes, ‘The Mountain’ from Game of Thrones is set for boxing debut against Eddie Hall Unknown 04:46 Hafthor Bjornsson made himself known to a global audience thanks to Game of Thrones. Share this Share on FacebookTweet on TwitterPlus on Google+ Related PostsCollege Football Playoff 2019: Prediction for every semifinal, bowl gameFab Fiver Juwan Howard must defy history to excel as Michigan's new coachNFL free agency rumors: Gerald McCoy ‘intrigued by’ BrownsGiancarlo Stanton injury update: Yankees shut slugger (calf) down for 7-10 daysFab Five nostalgia aside, Juwan Howard hire hinges on Michigan's next basketball cultureRudderless ship that is the New York Jets continues to aid in Patriots' dynasty