Top 5 UFC knockouts of all time

At number 5, comes Michael Chandler's front kick KO that ended a rejuvenated looking Tony Ferguson's night within seconds of the second round. 

Number 4 is occupied by Francis Ngannou's horror inducing knockout of fellow heavyweight Alistair Overeem. Overeem is no weak man, but one punch from the Cameroonian sent him to the shadow realm.

At Number 3, comes Dan Henderson brutal one punch KO of former UFC middleweight champion Michael Bisping. Although, Michael Bisping would eventually go on to achieve more successes, him falling to the canvas in the fashion that he did worried fans to a great extent.

Number 2, we have Conor McGregor's 13 second knockout of the then dominant featherweight champion Jose Aldo. It only took Conor McGregor a single hook to not only shock Aldo, but everyone around the world. 

Atop our list, is a knockout that needs no introduction. In 2019, fresh off a KO win over Darren Till, Jorge Masvidal flew his knee into Ben Askren's face, within 5 seconds of the bout, earning him the accolade of the fastest knockout in UFC history.