Floyd Mayweather has signed a deal to fight on New Year's Eve in Japan -- and it might be an MMA match -- but it ain't against Conor McGregor or Khabib Nurmagomedov.
The 41-year-old boxing superstar just announced he'll be fighting at RIZIN 14 on Dec. 31st against an undefeated 20-year-old kickboxer named Tenshin Nasukawa.
Floyd says he's still working with the promotion to decide on whether it will be boxing rules, kickboxing rules, MMA rules, etc.
Floyd says the fighting rules will be sorted out in the coming weeks. Floyd also says the two sides are still figuring out what weight the fight will be at.