EMPLOYEE STATED HE WAS HELPING MOVE THE CONTINUOUS MINER CABLE OUT OF THE HAULWAY, WHEN HE TRIPPED OVER A RIB ROLL & FELL STRIKING HIS LEFT LEG JUST BELOW THE KNEE ON A LUMP OF COAL ON THE MINE FLOOR. EMPLOYEE WENT TO THE E.R. AFTER WORK TO HAVE HIS LEG CHECKED & RETURNED TO WORK ON HIS NEXT SHIFT. EE CONTINUED TO WORK UNTIL 4/22/06 WHEN HE RETURNED TO THE DR.