FanHouse SeanSherk

In B.J. Penn's seven fights since returning to the UFC in 2006, he's 4-3. That record doesn't even come close to telling the story of Penn, the most dominant lightweight fighter in MMA history.

From his early UFC days as a contestant on The Ultimate Fighter to his road towards his upcoming title challenge against BJ Penn, there's at least one thing you can always describe Kenny Florian as: ever-improving.

"You talk about The Ultimate Fighter Finale four or five years ago, whenever that was, I always say my skills were zero," Florian said Tuesday during a media call for UFC 101.

Less than two weeks away from his UFC lightweight championship match at UFC 101, BJ Penn found himself fielding questions about a disputed text message and his treatment by the media, and was targeted by a crank caller during Tuesday's UFC 101 media conference call.

Still, at the end of it all, Penn claimed he was focused on retaining his title in his first match back from a drubbing at the hands of Georges St. Pierre at UFC 94.

"I'm fighting for the lightweight championship of the world. That's small stuff," he said. "I don't know how I get caught up in small stuff."

The Ultimate Fighting Championship formally announced today that UFC 103 will take place on September 19 in Dallas, and four fights have been set: Mike Swick vs. Martin Kampmann, Efrain Escudero vs. Cole Miller, Josh Koscheck vs. Frank Trigg and Tyson Griffin vs. Hermes Franca.

Notice anything missing?

It was a big weekend for the lightweights in MMA, with Eddie Alvarez winning the Bellator lightweight tournament on Friday night (above) and Diego Sanchez beating Clay Guida by split decision in a fight of the year candidate Saturday at the Ultimate Fighter Finale.

So what's next for Alvarez and Sanchez? Bellator will have to work hard to attract some top-notch lightweights to challenge Alvarez in their second season (I'm hoping they sign Joachim Hansen), while Sanchez thinks he's earned a shot at the UFC lightweight belt (but I think he should fight Gray Maynard first). My list of the Top 10 lightweights in MMA is below.

After a weekend in mixed martial arts that saw big lightweight fights in both the UFC and Dream, it's time to revise our list of the Top 10 lightweights in MMA. Frank Edgar is new on our list after his impressive UFC 98 win over Sean Sherk, while Gesias "JZ Calvan" Cavalcante has dropped off the list after a disappointing loss to Tatsuya Kawajiri at Dream 9. The full Top 10 is below.

How big a surprise was Frank Edgar's victory over Sean Sherk at UFC 98? So big that UFC President Dana White thought it was impossible.

The light heavyweight division is the most talented weight class in the Ultimate Fighting Championship, but after watching Lyoto Machida dominate Rashad Evans for the title Saturday night at UFC 98, I'm having a very hard time seeing how anyone is going to beat him any time soon.

That might sound like a crazy thing to say, because upsets happen all the time in mixed martial arts, and the light heavyweight title has changed hands four times in the last two years. But the fundamental way to win a fight is to hurt your opponent without getting hurt yourself, and there's no one better at that than Machida.

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Welcome to the FanHouse UFC 98 live blog. This is where we'll provide, live, round-by-round updates of the three big undercard fights: Xavier Foupa-Pokam vs. Drew McFedries, Dan Miller vs. Chael Sonnen and Frank Edgar vs. Sean Sherk.

When the undercard live blog is over you'll want to head over to our live blog of the co-main event between Matt Serra and Matt Hughes, and then to our live blog of the main event between Rashad Evans and Lyoto Machida. The pay-per-view broadcast and the live blog begin below at 10 PM ET.

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Former UFC lightweight champion Sean Sherk has always been known as a workout freak, and in the above video he goes through some amazing exercises to get himself ready for his fight with Frank Edgar at UFC 98. For anyone who's interested in either MMA or working out, it's incredible to see what Sherk puts himself through -- including cardio exercises while wearing a gas mask -- to prepare for his fights.