Re: monitoring opponents rear hand
i think its sparring where you will get experience. every person has its own style, you cant learn some sign or something and use it on all boxers..
some basic things i learned are to watch his hands, not eyes or something
if you are southpaw, circle to your right if you wanna avoid his right hand. that puts him in bad position to throw the right hand.
you can go to your left but then expect his right coming. then you can counter it.