JR Smith was a fan of LeBron James' decision to return to the Cleveland Cavaliers, so I'm guessing he's not a big fan of the Miami Heat and their fans.
Smith took to Instagram to post a photo making fun of Heat fans with a photo of pop star Rihanna in South Beach gear:
Lmfao #greatmorningworld
This might be a little more personal considering that Smith and Rihanna reportedly used to date.
