Floyd Mayweather dumps bff Beiber


Expect Justin Bieber to be a no-show when Floyd Mayweather takes on Conor McGregor in Las Vegas.

Bieber unfollowed Mayweather on Instagram. 

Mayweather has also reportedly told friends that he now considers the Biebs to be a "traitor." 

Their drama could explain why Bieber told a TMZ videographer last week that he doesn't think Mayweather will beat McGregor.