Tom Brady is speaking out after Dave Portnoy claimed he's getting $75 million to "unretire" and play flag football in Saudi Arabia ... asking sarcastically, "who cares about facts right?"
It all stems from a segment on "Wake Up Barstool" Monday morning ... where Portnoy said Brady secured an insane bag to take part in the Fanatics Flag Football Classic with a bunch of former and current NFL stars.
Brady caught wind of El Presidente's report .