THE EE WAS USING A PRY BAR TO DISLODGE A ROCK FROM THE BREAKER. WHEN THE ROCK MOVED THE BAR SLIPPED CAUSING HIM TO FALL APPROX. ONE FOOT. EE LANDED AWKWARDLY ON HIS FEET AND EXPERIENCED A SHAR P PAIN IN THE MIDDLE OF HIS BACK. THE EE MISSED ONE SHIFT BECAUSE THE DR. WASNT IN & HAS BEEN RELEASED FOR FULL DUTY.