Dillian Whyte has fulfilled 'clause 11' of the contract he signed to fight Tyson Fury for the WBC heavyweight title.
The Brixton fighter has refused to do any promotional work for the upcoming pay-per-view fight on April 23.
The two will collide in front of 94,000 fans at Wembley Stadium - a British boxing record.
The 'Body Snatcher' is unhappy about being given a 20% split of the record-breaking purse bid of £31m and made his feelings clear by not attending the opening press conference last month.
The 34-year-old - who has been training in Portugal for his upcoming contest - posted a video of him being put through the paces and captioned it: "I'm ready. I'm looking forward to seeing everyone on the 23rd of April @wembleystadium. #LetsGooo!!!!"
Promoter Frank Warren - who sang happy birthday to Whyte as he turned 34 this week - was tagged in the post alongside Wembley Stadium and Vow Nutrition.
Warren has been unimpressed by Whyte's lack of desire to build the fight up and was involved in a war of words with the fighter's lawyer Jeffrey Benz on talkSPORT.
"Fights like this, anything can happen. Guys get themselves up for it, it's a great opportunity for Dillian Whyte, he has been waiting for 1200 days for the opportunity and now he has got it.
"So he has got his platform, but he is in with the best heavyweight of his generation by far.
"I look at the skillsets and Tyson has shown he can box, he can stand and trade, he can punch, he can take a shot, he's got good recovery powers, he's got fast hands, he's got great footwork, he switch-hits, he's a nightmare for anybody no doubt about that."
Fury is returning for the first time since overcoming Deontay Wilder in October. The lineal titlist climbed off the floor twice on his way to recording an 11th round stoppage over the American.
Whyte meanwhile, has not fought since avenging his loss to Alexander Povetkin in March, 2021.