Fielding a Slow Roller (Bare-Handed)

Step 1: Stance
Both arms are out in front, knees are slightly bent, and feet are slowly moving towards home plate about shoulder width apart.

Shoulder Girdle - both are slightly abducted

Shoulder Joint - slightly adducted

Elbow and Radioulnar Joints - Flexed about 40 degrees and supinated

Wrist and Hand Joints - fingers and thumb extended and slightly abducted

Muscles involved: pectoralis minor, serratus anterior, latissimus dorsi, teres major, biceps brachii, brachialis, brachioradialis, extensors , abductor policis longus

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Step 2: Prep
As the ball approaches, bend down to grab the slow rolling ball with bare-hand.

Shoulder Girdle - (throwing arm) abducted (non-throwing arm) adducted

Shoulder Joint - extended

Elbow and Radioulnar Joints - (throwing arm) extended and supinated (non-throwing arm) extended and pronated

Wrist and Hand Joints - (throwing arm) wrist extended and fingers abducted (non-throwing arm) fingers adducted

Muscles involved: trapezius, pectoralis major, biceps brachii, triceps brachii, supinator, and extensors

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Step 3: Movement
Field the ball with a "bear claw" grip to increase chances of holding onto the ball. Knees are both bent in order to get the ball and to generate power for the throw in the next phase.

Shoulder Girdle - (throwing arm) depressed (non-throwing arm) elevated

Shoulder Joint - (throwing arm) extended (non-throwing arm) extended

Elbow and Radioulnar Joints - (throwing arm) extended and supinated (non-throwing arm) extended and pronated

Wrist and Hand Joints - (throwing arm) thumb all fingers extended,  (non-throwing arm) fingers adducted

Muscles involved: trapezius, serratus anterior, brachalis, biceps brachii, brachioradialis, palmaris longus, flexors,

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Step 4: Follow through
Ball must be throw across the body due to the angle taken to get the ball. Throwing off your back foot will generate the most power in this situation. Left arm is pointed towards the target to increase accuracy. right arm is slightly below the shoulder, and ball will most likely be thrown side arm due to the momentum of body going away from target.

Shoulder Girdle - (throwing arm) depressed (non-throwing arm) elevated

Shoulder Joint - (throwing arm) diagonal abduction (non-throwing arm) abduction

Elbow and Radioulnar Joints - (throwing arm) extended (non-throwing arm) extended

Wrist and Hand Joints - (throwing arm) wrist, thumb, 2nd, and 3rd fingers are extended, 4th and 5th fingers are flexed (non-throwing arm) fingers adducted

Muscles involved: serratus anterior, latissumus dorsi, teres major, subscapularis, pectoralis major, biceps brachii, bracioradialis, brachialis, triceps palmaris longus, flexors, extensors

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Step 5: Recovery:
Slowly come up from throwing position and come to a stop.

Shoulder Girdle - (throwing arm) slightly depressed (non-throwing arm) slightly elevated

Shoulder Joint - (throwing arm) diagonally adducted 

Elbow and Radioulnar Joints - (throwing arm) slightly flexed (non-throwing arm) slightly extended

Wrist and Hand Joints - (throwing arm,) fingers flexed (non-throwing arm) wrist flexed

Muscles involved: trapezius, rhomboids,pectoralis major, subscapularis, triceps brachii, biceps brachi, brachioradialis, brachialis,palmaris longus, flexors, extensors

Drill: When fielding a slow roller bare-handed, that indicates that the play is going to be very close at first. So unlike with the slow roller with the glove, the route to the ball must be a direct line. The throw won't be as strong, but sometimes its the only way to get the out. So in this drill, there is simply a stationary ball and the player must take a direct route to the ball, and make the throw to first. An illustration of the drill is below.