Doobie Doo
Veteran

Here's the deal ... after the fight, Bieber praised Conor McGregor on social media -- posting a photo of the guy with the caption, "Still the champ."

He added, "No bandwagon but Conor is a true champion, fights with style and finesse, all the respect to Nate but his style is terrible. Nate has crazy heart respect."
So, how did Nate Diaz react???
He posted a image on Instagram showing him slapping Bieber in the face with the caption, "Shut your bytch ass up."

Your move now, Justin ...
Read more: http://www.tmz.com/2016/03/08/nate-diaz-to-justin-bieber-shut-your-bytch-ass-up/#ixzz42Lag7vkt