Tyson Fury revealed he has signed a contract to face Deontay Wilder again in a trilogy fight, less than a week after announcing a heavyweight unification bout against Anthony Joshua was "100 per cent on".
Fury has a 30-0-1 record, only failing to win in an initial meeting with Wilder in December 2018.
However, Fury knocked out the American in February 2020 to claim the WBC title, with a clash against British rival Joshua an apparently obvious next step.
Progress looked to have been made on that blockbuster fight and, last weekend, the WBC champion even confirmed a date and venue – August 14 in Saudi Arabia.
A significant complication subsequently emerged, though, as Wilder won an arbitration hearing that stated he had the right to a third Fury bout.
This derailed plans with WBO, IBF and WBA strap-holder Joshua, and Fury instead penned an agreement to take on Wilder once more as he attended Saturday's light welterweight title fight between Josh Taylor and Jose Ramirez.
In a video posted on social media by Top Rank Boxing and shared by Fury, he said: "I'm going to sign the contract for the Wilder III fight, because Wilder's a p****, an excuse-maker and a s***house.
"Shall we do it and put him out his misery?
"[He is going to get] seriously smashed to bits. [I will] crack the other side of his skull, give him another shoulder injury, another bicep injury, another leg injury, a nutsack injury, the whole lot.
"Are you sure now, or shall we just hijack out of here, go to Saudi Arabia and fight someone else?"
The footage then showed Fury signing the paperwork, before he addressed the camera and his opponent: "Wilder, contract signed. You're getting smashed.
"When I say smashed, I mean smash, smash, smash, bang. You're getting knocked out. One round. You're going.
"I've got your soul, your mojo, everything. I own you. Super smashed."
The WBO has ordered Joshua to face Oleksandr Usyk, meanwhile, with any possibility of a Joshua-Fury showpiece now delayed at least until the defence of these titles.