Winning-streak Joseph Parker (on the left) boasts a six-bout unbeaten stretch, whereas KO artist Wardley is undefeated in 20 career contests.
Fabio Wardley vs Joseph Parker
Venue: London's O2 Arena, the capital Date: Weekend, October 25
Live Updates: Follow real-time updates and listen through BBC Sounds plus digital platforms starting at 8:30 PM BST prior to moving to BBC 5 Live from 22:00.
Joseph Parker stepped onto the scales nearly 20 pounds above compared to his opponent as both big men displayed self-assured figures - although in opposing manners - for this weekend's main event in London.
New Zealand's Parker is risking his WBO interim championship and opportunity to compete for the undisputed crown up for grabs against the perfect Wardley at the London venue.
Reigning division king Usyk has made clear his aim to retain his world titles facing the successful fighter.
"This is it. This means the ultimate," said a focused but focused Wardley, 30, at the Friday weigh-in.
The British contender - possessing the WBA 'interim' belt - registered at 17st 5lb, matching his previous matches.
"This contest prior to the ultimate challenge. Every effort is finished. Training is ticked off. The grueling sessions is accomplished. Now for some rest now. Huge occasion coming up," he stated further.
The historic venue in the capital's east saw beyond market goods on the measure as the both fighters faced off for the ultimate face-off ahead of the main event.
Parker flashed a wink at the camera and bobbed along to the music.
Showing off his strength, he appeared imposing and strong as he tipped the scales at 18st 10lb, only five pounds below than his career-heaviest.
It is a major change from the 107 kg version who surrendered his belt to Joshua in 2018.
"We are cautious, we are wary, but I'm going to fight fire with fire and I'm going to get him," Joseph Parker said.
I'm at a higher plane and will dominate him - Parker
Fabio Wardley, dressed in an Ipswich Town jersey, kept a straight face, acknowledged the audience, but looked focused.
Although he is the smaller man, Fabio Wardley has superb KO strength. He staged a thrilling turnaround versus Justis Huni in the summer, behind on the judges' cards then stopping his opponent in the tenth round although being outboxed for most of the bout.
"His opponent, his team and supporters are about to discover I belong to be at the top of this weight class," Fabio Wardley said.
"Every opponent has been the boxer critics say will defeat me. This is that fight. His attributes include exceptional pace, swift, vastly experienced. But I haven't been beaten so far, and no challenge will alter in the ring."
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