At the UFC's 'Go Big' press conference, the top stars in upcoming events, including Conor McGregor and Jose Aldo, squared off with their opponents Friday evening in Las Vegas. Subscribe: http://www.youtube.com/subscription_center?add_user=mmafightingonsbn Check out our full video catalog: http://www.youtube.com/mmafightingonsbn/videos Visit our playlists: http://www.youtube.com/mmafightingonsbn/playlists Like MMAF on Facebook: http://www.facebook.com/mmafighting Follow on Twitter: http://www.twitter.com/mmafighting Read More: http://www.mmafighting.com