An already loaded UFC Fan Expo just got some added firepower.

UFC President Dana White announced today that this year's festivities will include four grappling superfights featuring the likes of MMA stars Caol Uno, Hermes Franca, Javier Vazquez, and Fredson Paixao, as well as a much-anticipated women's contest.

On Friday, May 28 at 1PM PT, ADCC world champion Penny Thomas locks horns with MMA veteran Shayna Baszler in an intriguing women's matchup. Plus, former UFC star Hermes Franca, a dangerous Brazilian Jiu Jitsu black belt who owns submission victories over the likes of Nate Diaz, Mike Brown, and Jamie Varner, takes on jiu jitsu phenom Bill "The Grill" Cooper.

Then, on Saturday, May 29 at 1PM PT, UFC star and MMA legend Caol Uno battles WEC contender and four-time Brazilian Jiu Jitsu world champion Fredson Paixao in an exciting grappling showdown. If that wasn't enough, WEC star Javier Vazquez, a Gracie Jiu Jitsu black belt, takes on 23-time Grapplers Quest champ Jeff "Pipelayer" Glover in what is sure to be an explosive contest.

"For grappling fans, this is an awesome opportunity to see some of the world's best ground fighters compete against one another," said UFC President Dana White.