Conor McGregor appears as confused as everyone else with the news Floyd Mayweather will compete in a “special” fight against kickboxer Tenshin Nasukawa at Rizin FF 14 in December.

Boxing legend Mayweather surprised the combat sports world on Sunday when he appeared at a Rizin FF press conference in Japan and announced he would take part in a fight against 20-year-old undefeated kickboxing sensation Nasukawa. The rules of the contest have still yet to be determined.

Unsurprisingly McGregor, the former two-division UFC champ who transitioned sports to box Mayweather in August 2017, took notice of the news. He poked fun at Mayweather’s outfit for the press conference and then, like most, wondered exactly what’s going on here (via Instagram):

Is that a tracksuit or a sauna suit Floyd haha wtf. is it hot in Tokyo or what’s the story here? that climate change is no joke (expletive) me hahah
What in the (expletive) is going on here? Who’s this little prick next to you ? That’s mad (expletive). Like something out of rush hour 5 or something. Chris tucker and Jackie (expletive) Chan back in this (expletive). (Expletive) brilliant. Mad little bastard you are Floyd. Fair (expletive) to you mate. No lie. (Expletive) it.

Rizin FF 14 takes place Dec. 29 at Saitama Super Arena in Saitama, Japan. Broadcast plans for the fight have yet to be determined.

Although Rizin FF President Nobuyuki Sakakibara said there is still much to be finalized with the details of the Mayweather vs. Nasukawa fight, early reports indicate it will not be MMA and could potentially be an exhibition bout of three, three-minute rounds.

For more on Rizin FF 14, check out the MMA Rumors section of the site.