There's no way in hell Antonio Brown retires from football over his helmet issue ... so says Bill Romanowski, who tells TMZ Sports you're NUTS if you believe the star WR is even considering it.
"Anybody that thinks Antonio Brown is gonna retire is cuckoo," the NFL legend says ... "The guy loves the game of football."
Brown is in a massive feud with the league over his favorite Schutt helmet ... with the NFL barring the superstar wide out from wearing the headgear he's donned for the past decade.