Kimbo Slice, known for his backyard fighting viral videos, is calling out Sean Gannon for a rematch. He lost their first match together after Gannon put him in a guillotine hold. Kimbo is currently on the EliteXC Mixed Martial Arts circuit and his next fight will be on February 16th versus Tank Abbott. Meanwhile, Gannon hasn’t had a fight since 2005, so the rematch might not happen.