For the past couple of weeks, McGregor and Mayweather have bantered back and forth in interviews and social media teasing that they are both interested in putting the fight together.
Despite UFC president Dana White vehemently denying that the fight would actually happen, McGregor continues to poke and prod at the idea -- including in his latest post about entering the boxing fray.
McGregor also took some time over the past week to work with former IBF and IBO welterweight champion Chris van Heerden.
Whether he's boxing next or returning to the UFC, McGregor isn't slowing down his work ethic and is training like he's fighting in the very near future.