THE EMPLOYEE STATED HE WAS LOADING A BAG ON TURN BUCKLES INTO THE MINE JEEP AND HE FELT A PAIN IN HIS LEFT SHOULDER WHEN HE THREW THE BAG INTO THE JEEP. NOTE: THE EMPLOYEE RETURNED TO WORK ON HIS NEXT SCHEDULED WORK SHIFT. HE LATER STARTED MISSING AND MANAGEMENT LEARNED ON 8/20/04 THAT THE EMPLOYEE HAD A SLIGHT TEAR TO HIS ROTATOR CUFF.