If you can successful apply a felling attack on a Boxer, he has no techniques in his Boxing repertoire to defend

If you can successfully apply a felling attack on a Boxer, he has no technique in his Boxing repertoire to defend against it. This does not mean that if you know felling techniques, you will defeat a Boxer. A skillful Boxer may beat you badly before you can fell him. It depends much on your relative skills. But using an attack where your opponent has no counter is certainly a big tactical advantage. Before we learning felling techniques, it is necessary to practice break-falls to ensure the practice will be safe.