Sean Gannon, a UFC veteran who became the first man to beat the legendary Kimbo Slice in a street fight, has died.
Gannon, also a former Boston Police Officer, went 3-0 as an amateur and 2-0 as a pro during his brief MMA career from the early to mid-2000s. This culminated in a Only appearance for the Ultimate Fighter Championship, a loss to Brandon Lee Hinkle at UFC 55 in 2005.
His fight with Kimbo Slice, however, continues to make the rounds on social media today. At some point before Slice’s short-lived UFC, Boxing and Bellator MMA races, Gannon struggled in a grueling bout that saw him bloodied and sporting an obnoxious-looking bruise – but c It’s Slice who couldn’t get back to his feet in the finish.
Family members and Gannon’s former police partner paid tribute to the veteran on social media following news of his death.
“My heart is broken. I lost a beloved cousin. My cousin Sean” the gun “Gannon was best known as a UFC veteran and former Boston police officer, who gained notoriety. for a street fight where he was able to defeat Kimbo Slice, making him extremely famous in the fighting community, ”Gannon’s cousin wrote in a post on Facebook. “Less well known was his genius – a member of mensa !!; that he was like a giant loving teddy bear, one of the cutest I know; a great dad, and tenacious as hell !! He always made me feel special and god forbid nobody hurt me he would be my first call. he will be loved and dearly missed. his heart was as big as his stature and punch.
For nearly a decade, Gannon saw his police career curtailed, having been posted to a post due to what police called loss of cognitive function and memory issues related to his sports career. fight. Gannon sued the city of Boston in 2012, a superior court judge sided with the city. Gannon would appeal the decision in 2016.
Gannon would later become a whistleblower in a series of articles on The Underground at mixedmartialarts.com, part of which you can read here.
No cause of death has been revealed for Gannon.