By John Morgan, MMA Underground Power Slap–backed by Dana White, Hunter Campbell, Lorenzo Fertitta–aims for a 2022 debut in Las Vegas. View the original article to see embedded media. LAS VEGAS–What was once viewed as perhaps a viral oddity is now a regulated sport in the state of Nevada. On Tuesday, the Nevada State Athletic Commission unanimously approved a proposal that deemed slap fighting–where two athletes stand at arm’s length and take turns smacking each other in the face–does qualify as unarmed combat as defined by the state’s bylaws and therefore falls under the commission’s oversigh…