The Overhand Right
The Overhand Right is a Boxing punch, but it's not the same punch as the Straight Right. The Straight Right, like its name says, is a straight Punch, while the Overhand Right is a looping punch that arcs up and then down to its target which is the opponent's head.
The arm motion in the Overhand Right looks very simular to a baseball pitcher throwing a pitch, and when it lands it can put an END to the fight.