Slice parlayed videos of his street fights into a career as an MMA fighter. He reportedly died Monday at a Florida hospital of as-yet-undisclosed causes.
As some MMA fans suspected, the 27-year-old Dublin native's retirement announcement was simply a maneuver to gain leverage in his contract disagreement with the UFC.
McGregor made the announcement on Twitter, but some MMA fans are questioning whether the brash 27-year-old fighter means what he says or if this is simply a move to get more money from UFC.
The state was the last in the country to end its ban on MMA. The Ultimate Fighting Championship, a league that hosts MMA fights, has already scheduled a match at Madison Square Garden.
Far from the UFC limelight, hundreds of amateur mixed martial artists fight to go pro — or just straighten out their lives. Las Vegas has become their mecca.
With his loose curls and surfer's build, it's no wonder Urijah Faber is nicknamed the "California kid." But inside the ring, Urijah is anything but laid-back and smiling.
Author Matthew Polly has spent two years traversing the globe learning mixed martial arts from the best trainers. As he spoke with trainers and fighters he learned how the sport evolved from "human cockfighting" to one of the fastest growing sports in the world.
When Forrest Griffin tweeted a joke about rape, he set off a firestorm of anger among women and mothers. They see the MMA as very unsuitable role model for children and have spoken out about it.
The world of Mixed Martial Arts spans the globe. Hundreds of fighters from countries like Brazil, Japan, England and many more all compete for a chance for a chance to one day end up under the bright lights of the sport's biggest promotion, Las Vegas-based Ultimate Fighting Championship. Now, a new crop of fighters has popped up just across the border in the Southwest in Tijuana, Mexico. Many of the fighters commute to Tijuana from San Diego, CA to train at gyms that are more affordable but also offer highly skilled coaches. So how many of those fighters will end up in Las Vegas? Fronteras project reporter, Ruxandra Guidi recently visited one gym in Tijuana and she joins us to discuss how young Mexican fighters are looking to make it big in Las Vegas.
The ghost sport is how Paul Beston describes boxing. Once the most prestigious professional sport in the United States, it has now fallen on hard times.