In just his second appearance since 2016, former two-division champion Conor McGregor needed a mere 40 seconds to bust the nose of Donald "Cowboy" Cerrone and finish him via first-round TKO in their welterweight main event at UFC 246. SUBSCRIBE TO OUR CHANNEL: www.youtube.com/user/CBSSports FOLLOW US ON: Facebook - www.facebook.com/CBSSports/ Instagram - www.instagram.com/cbssports/ Twitter - twitter.com/CBSSports #UFC246 #ConorMcGregor #CowboyCerrone #MMA #DonaldCerrone