THE EMPLOYEE STATED HE WAS SHOVELING ALONG THE 7 LEFT BELT WHEN TWO PIECES OF ROCK CAME OFF THE BELT AND STRUCK HIM ON THE SHOULDER AND BACK AND KNOCKED HIM DOWN. PLEASE NOTE: THIS REPORT IS BEING SENT TO MSHA TO ABATE CITATION NO.7221508. THE MECHANISM OF INJURY AND THE PHYSICAL EVIDENCE OF THE EMPLOYEE AT THE TIME DOES NOT SUPPORT THE FACT THAT THIS IS A REPORTABLE INJURY.