Vai Cavalo's Mission

On this episode of UFC NOW, we'll talk about a former heavyweight champ who's determined to get another shot at gold. We'll also discuss a Russian prospect who may have time on his side. We are back with another edition of Roundhouse, where Michael Bisping and Cub Swanson will play a game of Do You Know? And you're not going to want to miss this week's Top 5, which is the Top 5 Heavyweight Fights.