Conor McGregor just knocked out Donald Cerrone in 40 seconds, called his rivals fools, and said he's off to party
9:43pm PST - January 18th, 2020 t-mobile arena - Business InsiderConor McGregor is back. The Irish fighter knocked out Donald Cerrone in 40 seconds at UFC 246 in the T-Mobile Arena in Las Vegas on Saturday. McGregor "busted" Cerrone's nose and finished him with strikes. Visit Business Insider's homepage for more stories. L…