Ireland's Conor McGregor will face Jose Aldo in an Ultimate Fighting Championship featherweight title bout in Las Vegas on Saturday night.
The Dubliner was originally due to challenge champion Aldo in July in Las Vegas, only for the Brazilian to withdraw citing a rib injury.
McGregor stopped late replacement Chad Mendes in the second round of their contest to earn the UFC interim title.
Five months on, bitter rivals McGregor and Aldo are now ready for hostilities.
McGregor and current title holder Aldo have become embroiled in heated exchanges and traded verbal insults, most notably during the UFC world tour promoting their original fight.
The Irishman criticised Aldo's withdrawal from the scheduled July bout, although the champion's camp insisted that his injury was genuine.
Both men are unbeaten in their UFC careers with Aldo's record stretching back 10 years.
However McGregor is predicting his own early stoppage victory this weekend.
"I don't see him answering the bell for the second round. I see him KO'd inside one," says McGregor.
The Irishman's build-up to the fight included his release of an Instagram video on Tuesday which showed him extinguishing candles with a series of forceful kicks and punches.