Undefeated pugilist Floyd Mayweather Jr. is now set to make his mixed martial arts debut. With that in mind, former two-division UFC champion Conor McGregor has decided to offer a few words on the matter. UFC News Floyd Mayweather Jr. finished Conor McGregor for a TKO victory inside the squared circle back in 2017 before slipping back into retirement. Now "Money" Mayweather has officially returned from retirement to face Tenshin Nasukawa on Dec. 31 under the promotion Rizin Fighting Federation. Taking to social media, Conor McGregor has decided to offer a message to Floyd Mayweather Jr. following the recent news. Mayweather voiced an interest in facing "Notorious" inside the octagon after their boxing match back in 2017. However, the undefeated pugilist will now be facing a different opponent under a different promotion. Check out Conor McGregor's thoughts on the matter down below. "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 f*ck me hahah What in the f*ck is going on here? Who’s this little prick next to you ? That’s mad sh*t. Like something out of rush hour 5 or something. Chris tucker and Jackie fu*king Chan back in this b*tch. F*cking brilliant. Mad little bastard you are Floyd. Fair f*cks to you mate. No lie. F*ck it." https://www.instagram.com/p/Bp0MEfVjCca/ For more MMA news click here.