A pair of middleweight contenders will face off at the UFC's year-end card as Yushin Okami and Alan Belcher will meet for a second time at UFC 155. Sources reported the middleweight matchup earlier today. UFC 155 is expected to be headlined by a heavyweight title fight between champion Junior Dos Santos and Cain Velasquez in a rematch of their UFC on Fox 1 bout. The card will also feature a light heavyweight rematch between Forrest Griffin and Chael Sonnen. The card will take place December 29.