Former Bellator and UFC lightweight champion Eddie Alvarez has been a free agent for some time now. However, mixed martial arts veteran has now signed with ONE Championship. Taking to Twitter, ONE Championship CEO Chatri Sityodtong broke the news with a video from the fighting phenom. \u201cThe moment of truth has arrived. I know you\u2019ve heard the rumors. They\u2019re true. We got our contract from and we\u2019re all signed up...This couldn\u2019t have went any smoother. It didn\u2019t take too long, everyone is happy and I\u2019m super excited. The Underground King is coming to ONE.\u201d https:\/\/twitter.com\/YODCHATRI\/status\/1052038412172066817 For more MMA news click here.