Video: Floyd Mayweather steps into MMA cage, Conor McGregor responds

Floyd Mayweather is entering the cage... literally.
Despite recently dismissing the notion that he might consider taking an MMA fight (presumably with rival Conor McGregor), the boxing legend apparently decided it would be fun to post a 10-second clip of himself stepping into an MMA cage on Tuesday, which you can watch above.
It didn’t take long for McGregor to respond:
Hahahaha very good. Keep up the good work my son.Yours sincerely,Senior. https://t.co/Qk3U69isTS— Conor McGregor (