Antonio Brown apparently has some serious issues with former teammate JuJu Smith-Schuster. After spending the weekend taking shots at JuJu on twitter, Brown took to instagram on Monday afternoon with some more troll-like behavior.

As seen in the IG post embedded below, Brown posted a screenshot of a private DM that JuJu had sent him in 2015, back when JuJu was still playing college ball at USC.

The harmless DM reads: "What's up AB? I'm a receiver at the University of Southern California. I appreciate all your work. Your a great man on and off the field. Do you have any tips that can help take my game to the next level? Thanks man."

Brown first started trashing Smith-Schuster on Sunday, when he replied to a fan's tweet about JuJu being the Steelers' MVP in 2018. In his response, AB referenced Smith-Schuster's fumble against the New Orleans Saints in Week 16, which hindered Pittsburgh's chances of making the playoffs.

The tweet reads:

"Emotion: boy fumbled the whole post season in the biggest game of year ! Everyone went blind to busy making guys famous not enough reality these days !  by the way check the list"

Smith-Schuster has not yet issued a response to AB's most recent troll job, but we wouldn't be surprised if he chooses not to engage with the new Raiders receiver.

JuJu posted the following quote from author Mark Twain on Sunday afternoon, "Never argue with a fool. Onlookers may not be able to tell the difference."