Floyd Mayweather appeared to be hinting on the rule-set in place for his fight with 20-year old undefeated Japanese kickboxer Tenshin Nasukawa when he posted pictures of him with one MMA glove and one boxing glove.
The special fight at the Rizin 14 card at Saitama Super Arena in Tokyo on New Year's Eve was announced without any word on rules nor weight class but details have emerged on how it will play out.
As per Boxing Scene, citing sources, it will likely be a three-round boxing exhibition that will not therefore not count towards Mayweather's perfect 50-record.
With Japan being 14 hours ahead of the East Coast and 17 hours ahead of Pacific Standard time, the fight will actually happen at Monday Morning US title and unless a deal is reached, it could mean that for the first time since 2005, a Mayweather fight doesn't air on pay-per-view in the US.
It will however, be shown live on Fuji TV as part of a deal Rizin have with the station in Japan.
Nasakuwa is 21 years junior to Mayweather but footage doing the rounds shows that he is is not to be taken lightly.
He's 27-0 in kickboxing, 4-0 in MMA on the whole and also boasts a 99-5 amateur kickboxing record before he turned professional aged 18.
He's just 5 foot 4 and only weighs 125 lbs but the kid, described by many as a "kickboxing sensation" looks very handy.
Conor McGregor, who fought and lost to Mayweather in a boxing match in 2017, posted a brilliant -- and somewhat 'controversial' -- response to the announcement on Instagram.
But Nasakuwa hit back in sublime fashion with a cracking tweet, urging 'The Notorious' to tune in on December 31.