1. Jose Aldo vs. Conor McGregor – UFC 194
Heading into UFC 194, which took place on December 12, 2015, the world was awaiting what was considered to be the biggest fight in the history of the sport: a featherweight title unifier between long-time champion Jose Aldo and outspoken Irish Interim title holder Conor McGregor.
The two were originally scheduled to meet at July 11’s UFC 189, but Aldo was forced to withdraw with an apparent rib injury. McGregor would go on to score a second round finish over Chad “Money” Mendes, making the hype surrounding his matchup with Aldo even larger.
Despite his six fight UFC win streak that included five finishes, many felt as if McGregor was all hype and all talk, and that Aldo would once again defend his strap.
Of course there were many believers in the “Notorious” one as well, but nobody saw what was coming.
Just 13 seconds into the highly anticipated affair, “Scarface” was unconscious on the canvas thanks to a devastating left hand from McGregor. Perfectly timed and perfectly placed, the shot was actually the first that the Irishman had thrown in the fight.
Although he added some unnecessary punches on the ground, this was a one-punch knockout make no mistake about it, and a fantastic one at that.
What are some of your favorite one-punch finishes?