RIZIN CEO Nobuyuki Sakakibara is interested in working with heavyweight mixed martial arts legend Alistair Overeem. Overeem, the former DREAM, Strikeforce and K-1 heavyweight champion, has spent the recent years of his illustrious career fighting for the UFC, but was released by the promotion earlier this week. While it remains to be seen where Overeem … Continue reading RIZIN boss interested in “working with” Alistair Overeem