On this episode of UFC NOW, we'll talk about an undefeated heavyweight from Down Under who excels inside the cage and who has a post-fight tradition that's taken on a life of its own. We'll also discuss a former champ with a lethal fighting style who has never forgotten where he came from. We are back with another edition of Roundhouse, where Alan Jouban and Bobby Green will play a game of Do You Know? And you don't to want to miss this week's Top 5, which is the Top 5 Post-Fight Celebrations.