Originally Posted by Cuauhtémoc1520
That is the counter to the jab from a lefty. It's called an off angle right hand, sometimes it's been called other things but it's not a secret in the boxing world or anything like that.
No that punch is different. You counter the southpaw jab with a straight right hand while leaning to your left but Marquez's punch has a different angle, it's a short overhand right.