Three big fights have been added to the UFC on Fox’s final card of 2012, scheduled for December 8th but with no venue as of yet, including a title fight. BJ Penn vs. Rory MacDonald has been officially rescheduled to this fight per a report from MMA Junkie and Shogun Rua vs. Alexander Gustafsson has been scheduled for here as well. The card will be headlined by a lightweight title fight between Benson Henderson and Nate Diaz.