EliteXC: Heat was a mixed martial arts event held by Elite Xtreme Combat (commonly known as EliteXC) on October 4, 2008, in Sunrise, Florida, at the BankAtlantic Center. The event was scheduled to be headlined with a heavyweight fight between Ken Shamrock and Kimbo Slice, but Shamrock had to pull out due to an injury and Seth Petruzelli was called up to replace him. Petruzelli delivered a shock win by knocking out Slice, but the fight was overshadowed by accusations that Petruzelli had been offered a payment by EliteXC's promoters to not fight Slice on the ground. The event also featured a heavyweight match between Andrei Arlovski and Roy Nelson in a cross-promotional event, and drew an estimated 4,560,000 viewers on CBS.