According to a report on SBNation, this would be the fifth fatality in an MMA-sanctioned bout since the 2007 death of Sam Vasquez in Houston, Texas.
João Carvalho: Portuguese MMA Fighter Dies From Brain Injuries Sustained in Bout
Franck 'The Answer' Edgar (R) fights with Tyson Griffin during UFC 67 at the Mandalay Bay Hotel in Las Vegas, Nevada on February 4, 2007. Started in 1993, the Ultimate Fighting Competition (UFC) is a combination of martial arts and boxing. Gabriel Bouys/AFP/Getty Images
By Dave Martin
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