Heads up, Matt Ryan ... Warren Moon tells TMZ Sports he believes the Falcons are a legit threat to land superstar quarterback Deshaun Watson in a trade this month.
"Atlanta is his hometown," the Houston Oilers legend said. "He's well-liked in that area, great organization and they could use a younger quarterback with fresh legs and everything."
Watson is on the verge of being shipped out of Houston -- and Atlanta has recently thrown its hat into the mix to try to score him in a trade.