On this episode of UFC NOW, we'll look back on the past and present of the heavyweight division, and what it would take for there to be a dominant champ in the weight class. Also, we'll discuss why one of the sports pound for pound best is changing things up. Plus, we're back with another edition of Roundhouse, as Kenny Florian and Kelvin Gastelum will play a game of "Do You Know". And our Top 5 for the week is a good one, which is the Top 5 Shocking Title Changes.

On this episode of UFC NOW, we'll discuss how the UFC is taking measures to fight back against the injury bug. Plus, we'll also look back on one of the best title fights in recent memory, and how the tide turned in the final moments of the bout. And we're back with another edition of Roundhouse, as Kenny Florian and Kelvin Gastelum will play a game of "Do You Know". And our Top 5 for the week is a good one, which is the Top 5 Comebacks in the UFC.