The UFC 194 main event between Jose Aldo and Conor McGregor was billed as one of the most anticipated fights in UFC history, and definitely the biggest in featherweight history. Would Brazil's Jose Aldo remain champion and further cement his status as one of the greatest MMA fighters of all-time? Or would Ireland's Conor McGregor become the 2nd brand new undisputed UFC champion on the card?

A pro-McGregor crowd filled the MGM Grand Garden Arena for the big showdown, and seconds later they were in dreamland. A MASSIVE left hand drilled Aldo, who fell immediately. McGregor threw hammerfists on the ground and Aldo was out cold. It was just about the first punch McGregor threw, and Aldo was finished.

Official result: Conor McGregor def. Jose Aldo via KO (punches) at :13 of round 1 to become the new UFC featherweight champion

It is the fastest finish in the history of UFC title fights. McGregor backed up his talk and in record time he became the new featherweight champion. Jose Aldo even landed a left hand of his own as he was going down, but McGregor's punch was first, it was harder, and Aldo was out. Aldo loses for only the 2nd time in his career, and for the first time by KO.

Stay tuned for complete post-fight coverage and fallout from tonight's event, including the press conference, bonuses, interviews, analysis, and highlights.