NFL running back Duke Johnson waited THREE YEARS to get revenge on Baker Mayfield ... and he finally got it by roasting the QB amid his uncertain future with the Browns.
26-year-old Bake released a lengthy, heartfelt message to the Dawg Pound on Tuesday ... breaking his silence as the Browns reportedly pursue 3-time Pro Bowler Deshaun Watson.
The post almost certainly seemed like a goodbye to the city that welcomed Mayfield in 2018 ... with lines like, "I have given this franchise everything I have," and mentioning how he'll work hard "wherever I take my next snap.