Floyd Mayweather vs Tenshin Nasukawa has been officially announced.
The exhibition fight will comprise of three rounds, which will last three minutes each, with standard boxing rules applied.
Nasukawa is a kick-boxer by trade, but will have to make do with his fists in the bizarre bout which will actually have no judges present.
There will be no official winner and the fight is being conducted purely on entertainment purposes, with Mayweather adamant he's still retired from the professional side of the sport.
As expected, Mayweather's decision has attracted criticism from those within combat sport, most recently Amir Khan.
"If you look at boxing and MMA - why is MMA and UFC surpassing boxing? Because they're putting the better fights on, they're putting the fights on that people want to see and these are just joke fights what Floyd Mayweather is doing," Khan said to Daily Mail.
"He's going to be getting a good cheque but it's hurting boxing isn't it? Boxing fans are going to buy the fight, think it's going to be a good fight, Mayweather is going to go in there and destroy the guy straight away (and) people will say it's a mismatch.
"The guy kicks well but you're not allowed to kick in this fight. If it was a kickboxing fight it would be different."
Khan may have a point, with the Brit often linked with a fight against Mayweather during his career.
As such, Mayweather was never going to let his comments slide and he's responded in style.
The Money Man said: "When he faced Canelo, we seen him comatosed. I was an old man when I faced Canelo and we all know that was easy work, probably some of the easiest work I ever had."
Ouch, 1-0 to Mayweather.
Khan himself is said to be close to a world title fight against undefeated American Terence Crawford, which could take place in March.