Victories do not come more irrefutable than this.
Conor McGregor and his left hand took just 13 seconds to stop Jose Aldo at UFC 194.
The Dubliner is now the undisputed UFC featherweight champion.
Post-fight, he spoke to Joe Rogan in the ring and put his victory down to 'precision and timing'.
Here's the view from the crowd, thanks to Cathal Pendred.
Incredible #UFC194 pic.twitter.com/gVD3UGXqwJ
— Cathal Pendred (@Pendred) December 13, 2015