Barstool Sports honcho Dave Portnoy is officially OFF the Antonio Brown bandwagon ... telling TMZ Sports he hates the WR now -- but he's open to change!!!
Remember, Portnoy sort of defended Brown after the Raiders cut his ass back in Sept. and then sung his praises once Dave's beloved New England Patriots brought him on board.
But, now that Bill Belichick and company kicked AB to the curb, how does Dave feel about the embattled wideout now?