Watch VoirFilms. Bare Knuckle Fighting Championship 41: Colorado was a bare-knuckle fighting event held by Bare Knuckle Fighting Championship on April 29, 2023. This event featured the debut of former UFC Middleweight champion Luke Rockhold, former UFC Lightweight champion Eddie Alvarez and former UFC Featherweight title contender Chad Mendes. Former UFC Lightweight and Featherweight champion Conor McGregor was in attendance for this sold-out event.