On this episode of UFC NOW, we'll talk about the return of "The Prodigy" B.J. Penn and what made him the first star of the lighter weight classes. And we're back with another edition of Roundhouse, as Kenny Florian and Kelvin Gastelum will play a game of "Do You Know." Our Top 5 for the week looks at the Top 5 Rare Submissions in the UFC.

Starring:

Jenn Brown

Genre:

Sports