Instructions
Tap the "R1" button while fighting.
Keep tapping the "R1" button, but press either the "Square," "Circle, "Triangle" or "X" buttons after tapping the "R1" button three times. The button you need to press will vary depending on the boxer you are using. Your boxer will throw the haymaker.
Back away from your opponent as fast as you can after using the haymaker, as you will be open to attack.