MFC 23: Unstoppable was a mixed martial arts event held by the Maximum Fighting Championship (MFC) on December 4, 2009, at the River Cree Resort and Casino in Enoch, Alberta.[1] The main event featured former UFC contender Thales Leites taking on fellow UFC veteran Dean Lister. The co-main event featured Jason MacDonald taking on Solomon Hutcherson.[2] The event aired live on HDNet.[3]