Mayweather will reportedly fight undefeated kickboxer Tenshin Nasukawa on New Years' Eve in an event thrown by Japanese MMA brand RIZIN. He posted a photo of himself wearing RIZIN kickboxing gloves on Instagram. "The world has never seen Mayweather compete live in (Japan)", he added, promoting the cross-code bout as an expansion of his businesses to the Far East.
As for Nasukawa, the 20-year old fighter from Japan is now 27-0 as a professional kickboxer with 21 knockouts.
'I have fought in the United States for all 50 of my fights.
Mayweather's fight against McGregor pushed his career earnings to US$1 billion (RM4.2 billion), joining American basketball great Michael Jordan and golfer Tiger Woods as the only athletes to have reached 10 figures in earnings, according to Forbes.
"It's the biggest moment in my life and I want to be the man who changes history".
"I want to continue to build my relationship with Money Team Tokyo", Mayweather said.
"I am pretty sure the crowd is going to be on his side, but I am there for a great cause".
"As far as the weight class, we're not really anxious about that".
The Rizin Fighting Federation was founded in 2015 by Japanese businessman Nobuyuki Sakakibara, who was previously the president of Pride Fighting Championships before it was sold to the then-owners of Ultimate Fighting Championship in 2007.
Nasukawa, a southpaw, is considerably smaller than Mayweather.
When asked about the sort of rules he preferred for the bout, Nasukawa said he really didn't care. "Boxing rules I wouldn't mind. I look forward to taking this worldwide".
Mayweather was complimentary of Nasukawa. "I love to entertain, I like for people to be entertained and who doesn't want to be entertained". "It's obvious he's doing something right to be where he's at". I'm not really anxious about the rules. My thing is just coming over here to display my talent and put on a show for the people.
"It has always been a goal of mine to go outside of the U.S.as a professional", said Mayweather (50-0, 27 KOs) while fending off questions regarding the rules and weight class for the fight.
The rules of the fight are still being worked on, according to ESPN's Ariel Helwani.