Undefeated boxing former champion Floyd Mayweather Jr. has officially come out of retirement for his mixed martial arts debut. Now Rizin Fighting Federation has come forward with an official promo for the upcoming match up.
“Money” Mayweather is set to fight Tenshin Nasukawa at Rizin 14 in a “special rules” bout on Dec. 31, 2018. Check out the official promo for the upcoming match up down below.