The date and opponent for Floyd Mayweather's next fight have been set, and neither are who you would expect. The undeafeated boxer will be fighting undefeated Kickboxer Tenshin Nasukawa for the "Rizin" promotion on New Year's Eve. The fight will take place at the Saitama Super Arena in Saitama, Japan. It’s not clear whether it will be a boxing match, an MMA fight or another combat sport. The promoters said they were still working on the specific rule set.