Rotator cuff fires to stabilize and rotate right shoulder

Left shoulder begins ball toss

Potential energy loaded in quads and knees in prepartation for explosive launch

Ball toss is at the peak of Young's reach, slightly forward and to her right

Eyes concentrated on flight of the toss

Right arm is cocked and ready to begin forward snap

Weight is transfered toward back end, ready to spring

On balls of her feet, ready to lift off into the air

Back arched, ready to rise upwards

Racket and head extended back to their farthest

Knees uncoiled beginning their ascent toward the ball

Arm and racket meet ball as it descends from the apex

Right wrist and forearm have snapped

Body is fully extended, falling forward

Quads contracted, weight has left the ground

Legs airborne and balancing on one toe

Rotator cuff turns right wrist and racket in toward the body, creating spin that keeps the ball in the service box

Weight is fully forward

Feet are approaching shoulder width distance, ready to move and track the return

Eye level is raised and looking towards opponent's reaction