Watch Yair Rodriguez KO BJ Penn from their bout in January. Rodriguez takes on Frankie Edgar at UFC 211 on May 13.

UFC Minute host Lisa Foiles recaps the action from Fight Night Phoenix, including Yair Rodriguez's signature win over BJ Penn.

Hear from lightweight Joe Lauzon backstage who spoke with UFC correspondent Megan Olivi backstage after his split decision win against Marcin held at Fight Night Phoenix.

UFC featherweight contender Yair Rodriguez spoke backstage with UFC correspondent Megan Olivi about his dominant win over BJ Penn at Fight Night Phoenix.

Hear from featherweight contender Yair Rodriguez inside the Octagon after his TKO stoppage victory over the legendary BJ Penn at Fight Night Phoenix on Sunday, Jan. 15, 2017.

Watch the Fight Night Phoenix official weigh-in on Saturday, Jan. 14 at 7pm/4pm ETPT live from the Talking Stick Resort in Phoenix, Arizona.

There a bunch of big fights going down Sunday night in Phoenix, but which fights are the favorites to win Fight of the Night honors? Can BJ Penn and Yair Rodriguez put on a performance to earn the award? Here are some potential candidates.

Entering his 11th year in the UFC, Joe Lauzon is as ready as ever to put on a show. Don't miss his co-main event about against Marcin Held at Fight Phoenix.

An underdog his whole life, flyweight contender John Moraga was saved by wrestling from the mean streets of Phoenix, Arizona. He makes his return to his hometown against No. 15-ranked Sergio Pettis at Fight Night Phoenix.

The Gracie brothers are back to breakdown Ben Saunders victory over Chris Heatherly in August of 2014.

The Gracie brothers are back with a signature breakdown, this time of Joe Lauzon's victory over Jamie Varner in 2012.

In the third matchup between UFC legends BJ Penn and Matt Hughes, Penn scored a KO victory at UFC 123. Don't miss Penn's return to the Octagon on Jan. 15.

Watch the Ultimate 8 moments from BJ Penn's historic career. Penn returns to the Octagon on Jan. 15 to take on Yair Rodriguez in the main event of Fight Night Phoenix.

BJ Penn is set to return to the Octagon for the first time since since 2014 when he takes on Yair Rodriguez in the main event of Fight Night Phoenix.

Yair Rodriguez has tasked himself with becoming the face of Mexican mixed martial arts. The young superstar is one of the most entertaining fighters on the roster and he is back in action at Fight Night Phoenix against legend BJ Penn.

The action returns to the Octagon for a special Sunday Fight Night, headlined by BJ Penn vs. Yair Rodriguez. This card is stacked with great fights. Here’s the under-the-radar fights to watch this weekend.

One of the most decorated UFC fighters that have ever stepped foot inside the Octagon, BJ Penn returns in Phoenix to recapture the magic of his legendary run. He faces the new breed of fighter when he takes on Yair Rodriguez Sunday night on FS1.

Watch Joe Lauzon's submission over Melvin Guillard during their fight at UFC 136. Don't miss Lauzon take on Marcin Held in the co-main event at Fight Night Phoenix on Jan. 15.

UFC Minute host Lisa Foiles takes a deep dive into the statistics of the Fight Night Phoenix main event between Yair Rodriguez and BJ Penn.

Watch Yair Rodriguez's infamous head-kick KO against Andre Fili. Rodriguez headlines Fight Night Phoenix as he takes on BJ Penn.

Watch Fight Night Phoenix, featuring main event featherweights Yair Rodriguez and BJ Penn, on Jan. 15 live on FS1.