On this episode of UFC NOW, we'll talk about a former heavyweight champ who's pursuing another shot at gold. We'll also discuss the challenges of working a commentator gig while still fighting in your prime. We are back with another edition of Roundhouse, where Alan Jouban and Kenny Florian 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 Elbow Knockouts.

On this episode of UFC NOW, we'll talk about a fighter who has conquered his share of adversity and is now better than ever. We'll also discuss a former champ who commands your attention -and some popcorn- every time he competes in the octagon. We are back with another edition of Roundhouse, where Kenny Florian and Jessica Penne 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 Controversial Finishes in UFC History.