EE WAS OPERATING THE OFF-SIDE OF THE ROOF BOLDER ON C-1 PALNEL. AS HE REACHED OUT TO CHANGE STEELS WITH HIS RIGHT HAND, A ROCK FELL FROM THE TOP ON STRUCK HIS RIGHT POSTERIOR WRIST LACERATING IT. THIS REQUIRED (2) SUTURES TO CLOSE IT. EE RETURNED TO WORK AT HIS REGULAR ACCUPATION ON HIS NEXT SCHEDULED SHIFT/ (3-10-00). NO DAYS WERE LOST, THIS IS TO REPORT MEDICAL TREATMENT ONLY