Video: Conor McGregor knocks-out Jose Aldo inside 13 seconds at UFC 194

Irishman becomes undisputed featherweight champion

Conor McGregor celebrates victory over Jose Aldo (GETTY IMAGES)

Conor McGregor took just 13 seconds to beat Jose Aldo in arguably the most anticipated fight in the history of the UFC.

The Irishman backed up his pre-fight bravado when just seconds after the start of his fight he had become the undisputed featherweight champion.

McGregor finished the fight with an electrifying exchange shortly after the opening bell, slipping Aldo's lead right and cracking Aldo on the jaw with a huge left hand.

Aldo actually finished his punch and hit McGregor with a left, but the champ fell senseless to the ground and McGregor pounced, only to be pulled off in victory.

If you're just waking up, the @UFC has a new Featherweight Champion! Congratulations @TheNotoriousMMA! #UFC194 https://t.co/LZHSuvAHFh

— BT Sport (@btsport) December 13, 2015

Dubliner McGregor has helped expand the appeal of MMA with the fight at UFC 194 reportedly generating upwards of $100m.

Aldo had won 18 consecutive fights over the last 10 years, but nothing seems to slow McGregor. The loquacious Irish brawler goaded Aldo throughout the promotion of their delayed bout, only to back up every word he said.

Additional reporting by Reuters