Fedor Emelianenko finally has an opponent for Rizin FF I and it will be Jaideep Singh, the two will meet in a heavyweight bout. Emelianenko will be returning to competition after a self imposed retirement three years ago, he is widely considered to be the greatest heavyweight of all time. Singh has only competed twice as a professional MMA fighter and he is better known for his kickboxing skills. Rizin FF I takes place on December 31st from the Saitama Super Arena in Saitama, Japan with the aforementioned fighters headlining.