no answer for a boxer
I briefly took boxing lessons in the past in an attempt to improve my kick boxing ability. Through acquaintances I lucked out getting private lessons from Donnie Johnson and Lawrence Grace (both pro`s and from a lineage of pro fighters). Sparring with them they only welted my forehead instead of causing real damage (I already had a broken nose at the time
Lawrence (rest his soul) use to fight in the ring for a dollar a round in his youth, often unsanctioned prize fights. From Lawrence I learned "economy of movement" and a "nifty" sucker punch that blends in beautifully in the system called Uechi . From Donnie watching/reading the whole person not the arms. Also, the benefit of keeping your chin tucked...not only for your protection but it triggers more aggressive speed. Both these guys could and have handled themselves on the street, never once did they limit themselves to the "ring game" and they had the advantage of sensing the will of the "victim" (victim because of preemptive strike) to react effectively or be controlled. They did not fight a method of fighting just the fighter. My point? I believe that if you are going against someone who has seen and felt advantage/disadvantage then one must have the same experience to face that opponent in an uncontrolled situation. Boxers do not experience a stoppage after a point is called. Get the first blow in before the game is on, and be prepared to escalate faster than he.
Would one trim the branches in your way before cutting down a tree if your life depended on it?