Floyd Mayweather and Justin Bieber
via Instagram / Justin Bieber

Nearly a week after Justin Bieber said there’s no way Floyd Mayweather could KO Conor McGregor, the boxer is calling him a “traitor”.

If you missed it, TMZ cameras caught up with Bieber after he finished a run in Los Angeles and asked about the upcoming fight. Specifically, if he thinks Mayweather would knockout McGregor. He replied: “I don’t think so. I think it’ll be a good fight.”

Apparently, that and Bieber unfollowing him on Instagram has Mayweather pissed.

According to TMZ, the pop star has been pulled away from friends and other bad influences, as he re-commits himself to God… specifically, through Hillsong Church.

One of those influences being Floyd Mayweather, because Bieber wants to “reset boundaries” and take himself away from things like Mayweather promoting his Girls Collection strip club.

After unfollowing him on Instagram, Mayweather went “insane, nuclear,” a source told TMZ, adding that he even called him a “traitor”, especially since Floyd supported him during rough times.

Now, the question is: Will Bieber show up for the Mayweather-McGregor fight?