It's finally fight week and training winds down as the media obligations spike for UFC heavyweight champion Junior dos Santos and challenger, former champion Frank Mir.

Junior Dos Santos made his first successful heavyweight belt defense when he defeated Frank Mir at UFC 146. Watch Dos Santos take on Ben Rothwell in the main event at Fight Night Zagreb on April 10 live on FS1.

This episode features a fight flashback to UFC 146, the UFC's oldest fan, and Chris Lytle campaigning for the Senate.

UFC® heavyweight champion Junior Dos Santos discusses his breakthrough performance: his Octagon™ debut against top contender Fabricio Werdum.

See heavyweight champion Junior dos Santos at home in Brazil, the country that he's using his success to help rebuild; plus Frank Mir at home in Las Vegas with the family that saved his life after a motorcycle accident nearly derailed it.

Main card heavyweights Roy Nelson, Dave Herman, Stipe Miocic and Shane Del Rosario are ready to entertain the crowd at UFC® 146.

Glover Teixeira impresses in his UFC debut, submitting Kyle Kingsbury with an arm triangle in the first round. Hear what he had to say about his first Octagon experience.

Stefan Struve is one of the UFC’s top heavyweight prospects, but this will be his toughest test yet as he faces the ultra tough Lavar Johnson. Watch Struve's next fight against Nogueira at UFC 190.

At UFC 140, Frank Mir became the first fighter to submit Minotauro Nogueira. Revisit Mir's shocking submission victory as seen through the eyes of heavyweight Matt Mitrione and middleweight contender Mark Munoz on FUEL TV's Ultimate Insider.

Former champion Frank Mir has a chance to get his belt back in a title bout against Junior dos Santos. Plus, Cain Velasquez welcomes Bigfoot Silva to the Octagon on the first-ever all-heavyweight card.

Former UFC heavyweight champion Frank Mir reflects on what it meant to snatch victory from the jaws of defeat by submitting Minotauro Nogueira at UFC 140.

They're both dangerous, fast-rising and fans of one another. But after an injury knocked Mark Hunt out of commission, Stefan Struve and Lavar Johnson will now battle one another Saturday at UFC 146.

TUF champ Diego Brandao meets seasoned wrestler Darren Elkins and KO of the Year frontrunner Edson Barboza faces former WEC King Jamie Varner... and those are just the prelims. Don't miss UFC 146!

Hear what Junior dos Santos, Frank Mir, and Cain Velasquez had to say during the UFC 146 post-fight press conference.

In his third appearance in the Octagon, Stipe Miocic remained unbeaten after knocking out Shane Del Rosario at 146. Watch Miocic fight for the heavyweight belt against Fabricio Werdum at UFC 198 on May 14.

Highlights from the UFC 146 event announcement with Dana White plus heavyweights Junior dos Santos, Alistair Overeem, Cain Velasquez, Frank Mir, Roy Nelson and Antonio Silva.

"If you want to work your way up the ladder, don't fight me." Former heavyweight champ Cain Velasquez wants another shot at the title, and he's more than willing to go through Antonio "Bigfoot" Silva at UFCR 146 to get it.

See what happens when heavyweight juggernauts Junior dos Santos and Frank Mir collide at UFC® 146, live on Pay-Per-View May 26th.

Hear some of the best sound bites from Junior dos Santos, Frank Mir, Roy Nelson, Dave Herman, Stefan Struve and Lavar Johnson at the open workout for UFC® 146: Dos Santos vs. Mir.

Cain Velasquez returns to his winning ways with a first-round destruction of Antonio "Bigfoot" Silva. Get his thoughts on the fight, and hear who he's gunning for next.

Heavy hitter Roy Nelson brings the power in this KO of the Week performance against Dave Herman. Don't miss "Big Country" in his main event showdown against Josh Barnett at Fight Night Japan on Sept. 26.

Follow the middleweight as he prepares for his fight at UFC 146 in Las Vegas versus CB Dollaway. The video blog takes us to Reign training facility to Lake Forest, CA where "Mayhem" trains with the likes of Jake Ellenberger and Mark Munoz.

Go inside the personal lives and training camps of heavyweight champion Junior Dos Santos and former champion Frank Mir in the weeks leading up to their title fight at UFC 146.

Heavyweight champ Junior dos Santos knows that Frank Mir is coming with a solid game plan, but doesn't plan to give him a single chance to implement it.

"Let's throw punches, and see who falls down first." UFC® standouts Jason "Mayhem" Miller, CB Dollaway, Dan Hardy and Duane "Bang" Ludwig discuss their upcoming bouts at UFC® 146: Dos Santos vs. Mir.

Headliners Junior dos Santos and Frank Mir discuss knockouts vs. submissions, using the UFC® heavyweight championship belt as a pillow, language barriers and more at the UFC® 146 pre-fight press conference.

After withstanding some nasty leg kicks from Edson Barboza at UFC 146, Jamie Varner came storming back to earn the TKO finish, becoming the first person to beat Barboza inside the Octagon.

Junior Dos Santos discusses his replacement opponent, Frank Mir, for his upcoming heavyweight title fight at UFC® 146

Heavyweight champion Junior Dos Santos defends his title against former champ Frank Mir in the hardest-hitting main event of the year.

UFC Primetime: Dos Santos vs. Mir follows the current heavyweight champ and a former one who's training to get his hands on the belt again.

See all 10 heavyweight fighters at the UFC 146 pre-fight press conference.

Big men, massive power - see highlights from the UFC 146 all-heavyweight open workouts at MGM Grand.