In December, Conor McGregor set a UFC record for the fastest championship victory ever, when he KO'd Jose Aldo in just 13 seconds.
Surprisingly though, that wasn't the fastest win of McGregor's career... not even close. In 2011, McGregor faced a fighter named Patrick Doherty in Ireland, and well, just watch for yourself:
All told, McGregor has five victories on his record that ended in the first 30 seconds, and a total of 14 that he ended in the first round.
His next match-up will be against UFC lightweight champion Rafael dos Anjos at UFC 197 in March.