2. Keep your elbow down.
3. Snap the arm forward at the elbow joint.
4. Push the left shoulder forward by pushing
3. Snap the arm forward at the elbow joint.
4. Push the left shoulder forward by pushing
This is the most important punch in boxing. The purpose of the left jab is to keep your opponent on the defense and to accumulate points. If you are keeping a jab in your opponents face, he will have to concern himself with defense which will afford him less time to work on his offense (hitting you in the nose).