Bellator MMA, his current promotion, confirmed the tragic news with a statement from president Scott Coker on Monday night. A few hours later, the UFC, which once promoted Slice and featured him on its Ultimate Fighter reality show, released a statement of its own.
The full text of the UFC's statement is below:
UFC is saddened to learn of the passing of Kevin Ferguson, known to fans around the world as Kimbo Slice.
Slice will forever be a part of UFC history as a contestant on season 10 of The Ultimate Fighter in 2009, and for having fought twice inside the Octagon at The Ultimate Fighter Finale and UFC 113. He carried himself as a true professional during his time in our organization.
While he will never be forgotten for his fighting style and transcendent image, Slice will also be remembered for his warm personality and commitment to his family and friends.
UFC offers its sincere condolences to Slice's family, friends and teammates at American Top Team.
Slice, whose real name was Kevin Ferguson, rose from YouTube streetfighting sensation to mixed martial arts TV ratings behemoth, was rushed to the hospital in Florida earlier Monday. The cause of his death is unknown at this time. Slice was slated to fight for Bellator next month in London.