Antonio Brown has been fired by his powerful NFL agent Drew Rosenhaus -- who says he won't work with the embattled WR again until he gets professional help.
Rosenhaus -- who has worked with Brown for years -- sent a letter to the NFL Players Association saying he wants to work with AB again, but strongly believes Antonio needs counsel first, this according to ESPN's Adam Schefter.
Rosenhaus -- whose client list includes stars like Tyreek Hill and Rob Gronkowski -- had been sticking by AB's side through all the drama with the Steelers, Raiders and Patriots .