The Oakland Raiders are planning to suspend star wide receiver Antonio Brown after he “got into it” with general manager Mike Mayock on Wednesday, according to ESPN.

Mayock was apparently annoyed that Brown took to social media and posted a fine letter that Mayock sent him. That “led to an exchange," according to ESPN.

NFL Network has more details about the heated exchange:

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More on #Raiders WR Antonio Brown and Mike Mayock yesterday: It did not get physical, sources say. But after a screaming match, Brown told Mayock that he would hit him in the face and then punted the ball… and said, Fine me for that. 💸💸💸 — Ian Rapoport (@RapSheet) September 5, 2019

Wow.

And it appears that exchange could lead to a suspension, though nothing is official yet. It remains unclear how long Brown would have to sit. Could he actually miss Monday night’s season opener at home against the Broncos? It’s possible, but not a lock yet — and you know coach Jon Gruden has zero interest in playing that game without Brown.

Brown is a superb player, so we figured all along that he’d be worth the drama in Oakland. But with Brown, there’s always going to be drama of some level — whether he is freezing the bottom of his feet in a cryotherapy chamber or lashing out at his former quarterback or refusing to practice because he doesn’t like his helmet options.

And all of those things did indeed happen this summer, before Brown played a single game with the Raiders, who traded for him in a deal with Pittsburgh earlier this year.

Just when you thought all of that was behind Brown — his feet healing, an NFL-approved helmet on his head — he posts a fine letter on social media. Foolish. And you can’t really blame Mayock for being upset about that. It was a highly unprofessional move by Brown, who hasn’t exactly been a toe-the-line professional throughout his career.

Now you can see why the Steelers were so eager to unload such a talented player — as if it wasn’t obvious already. The drama is the cost of doing business when you employ Brown. But a GM can’t have a player publicizing a fine letter or, worse, getting into it with team leadership — be it the GM or head coach. Brown left the Raiders no option but to suspend him — or at least threaten him with a suspension. (We’ll see if it actually happens.)

The suspension could impact Brown’s guaranteed money — in terms of whether it remains guaranteed. And maybe that will finally get Brown to shape up. Because the on-field stuff with Brown has never really been a big question. He generally delivers results. It’s this off-field nonsense that follows Brown wherever he goes.

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Brown has a huge amount of guaranteed money in his contract — his $14.625 million salary this year, plus his $14.5 million salary next year, plus a $1 million signing bonus he has already received. That is $30.125 million total guaranteed. But maybe not that much money now, after Brown jeopardized it with his latest incident of childish behavior.

Darryl Slater may be reached at dslater@njadvancemedia.com. Follow him on Twitter @DarrylSlater. Find NJ.com Jets on Facebook.