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Fatalities

There have been seven known deaths in MMA to date. There were no documented cases of deaths after a sanctioned MMA event prior to 2007.

Since 2007, there have been six fatalities in mixed martial arts matches. The first was the death of Sam Vasquez on November 30, 2007. Vasquez collapsed shortly after being knocked out by Vince Libardi in the third round of an October 20, 2007, fight at the Toyota Center in Houston, Texas. Vasquez had two separate surgeries to remove blood clots from his brain, and shortly after the second operation suffered a stroke and did not regain consciousness.

The second death stemming from a sanctioned mixed martial arts contest occurred in South Carolina on June 28, 2010, when 30-year-old Michael Kirkham was knocked out and never regained consciousness. He was pronounced dead two days after the fight.

The third death on August 11, 2012, involved 30 year old Tyrone Mims, who was making his amateur MMA debut at "Conflict MMA: Fight Night at the Point VI" in South Carolina, making his the second MMA-related death in the state. After being TKO'd in the second round of the fight he became unresponsive and was taken to Medical University Hospital, where he was pronounced dead one hour later. No evidence of brain trauma or concussion was found and the initial autopsy has proved inconclusive. Coroner Rae Wooten explained that his death may probably have been from an irregular heartbeat caused by over exertion; however whether or not his death was a direct result of his fight remains a mystery.

On February 27, 2014, 29-year-old Booto Guylain was transported to Johannesburg General Hospital to be treated for swelling and bleeding on the brain after suffering a KO loss via elbow in the last round of his fight in South African promotion "Extreme Fighting Championship Africa". He was unable to make a recovery, and after one week in the hospital he was pronounced dead.

On April 9, 2016, 28-year-old João Carvalho, died following a Total Extreme Fighting event at the National Stadium in Dublin (Ireland). The Portuguese fighter was beaten by technical knockout in a fight on 9 April 2016 against Charlie Ward, and fell ill twenty minutes after the fight. He was taken immediately to Beaumont hospital, where he underwent emergency brain surgery, but died two days later.

On July 15, 2017, after a TKO loss resulting from unanswered punches in the second round of his fight, 37 year old Donshay White became unresponsive and collapsed in his locker room and was rushed to the KentuckyOne Health Sts. Mary & Elizabeth Hospital in Kentucky. He was soon pronounced dead and was revealed to be caused by hypertensive/atherosclerotic cardiovascular disease.