An interesting tip on McCallum's left hook to the body. He threw it so that it would come up from under. landing right under the elbow. You raise your elbow even a little bit on McCallum he is going digging like no tomorrow.

Also interesting because most boxers cannot throw the left hook to the body in this way. their lead arm is not held low at the waist like McCallum and as a result is unable to come up from under to hit bellow the elbow. They keep that lead arm high up and must drop it in order to scoop that left hook like McCallum did. Something they never do because it leaves their squared up body exposed. The problems are many in number for them and only seem to compound further and further as you go down the line.