Floyd Mayweather disses Justin Bieber on Instagram.

Calling Bieber a Traitor and reminding him of how he stuck by his side during hard times, Floyd Mayweather took to Instagram to voice his opinion about the young artist. A dispute started after Bieber unfollowed Mayweather while he was attending a Rehab center and re-evaluating who he has been hanging out with. Justin Bieber is no longer a part of the Money team and both are no longer on speaking terms.