Eddie Hall has vowed to do "whatever it takes" to drop and stop Thor Bjornsson in their forthcoming grudge fight.
The former strongmen will meet in a heavyweight boxing match in Dubai on March 19 in a bid to settle their long-running rivalry.
The pair were due to clash last September but Hall was forced to pull out with a torn bicep.
And the Brit is ready to make up for lost time - despite being the less experienced if the giant duo.
"I'll do whatever it takes to put Thor on the canvas," he said in a promotional video for the fight. "I've got more heart, more determination, more aggression, more speed, more agility, more punch selection.
"The only thing he's got on me is reach. I'm telling you now, this is going to be a proper fight and in a fight, it's the better fighter that wins."
Bjornsson has accumulated more ring time than Hall having taken part in three exhibition bouts.
He took professional boers Steven Ward and Simon Vallily the three and four-round distance respectively in what were glorified sparring matches.
He then stopped arm-wrestling champion Devon Larratt in the first round in a hastily-arranged bout following Hall's withdrawal.
And Bjornsson, who has also appeared in Game of Thrones, believes he will be the more accomplished fighter on the night.
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"I'm the more complete fighter, a technical fighter," he said. "I'm going to beat you no matter what. Enough talk, Eddie, it's either put up or shut up."
Hall and Bjornsson will continue a theme of athletes from other disciplines taking to the boxing ring.
Two weeks after they touch gloves, Martyn Ford - also known as the World's Scariest Man - will take on Iranian Hulk, real name Sajjad Gharibi.
The two heavyweights will meet at The O2 arena in London on April 2 in a fight originally scheduled to take place in a mixed martial arts cage.
