Today on "MMA Nation" we'll be joined by Interim UFC Heavyweight Champion Frank Mir. We'll ask Mir about being the underdog, what skills he's learned since the last fight, his $60,000 training camp and much more. 

We'll also talk to Sports Illustrated's Josh Gross. We'll ask Gross about his predictions for PPV buys, what this event means for MMA and the UFC, who he has as winners in the three major fights and more..

And, of course, the latest and greatest in MMA news will be discussed as well. Lots of UFC 100 talk: predictions, significance, the media hype and more.

"MMA Nation" airs every Saturday 7:00pm EST to 9:00pm EST on 106.7 WJFK. To listen live over the Internet, go to WJFK's website and click "Listen Live".

I'm also now on Twitter: @mmanation.

"MMA Nation" is also available by podcast on iTunes.

Number to call: 800-636-1067

Email here.

Talk to you then.

UFC 100 coverage