He captioned the pic with a crying emoji, and the words, "ICant."
Brown has had big beef with the Bucs ever since the meltdown during the Jets game ... accusing Bruce Arians and the team of trying to force him to play on a badly injured ankle.
Brown's departure got so messy, he actually shaded Brady following the whole ordeal.
But, it seemed Brown had been moving on -- he told TMZ Sports last week he and Brady had hashed out their issues ... and he also admitted to photogs recently that his shirtless rant was not very professional.
Still, looks like there's quite a ways to go before the water is officially under that Bucs bridge.