EMPLOYEE HAD BACKED MINER OUT OF CUT TO REMOVE ROCK THAT HAD FALLEN ON TOP OF MINER. AS HE WAS STANDING ALONGSIDE OF MINER ON RIGHT SIDE, HE ATTEMPTED TO LIFT A PIECE OF ROCK THAT MEASURED 24"" X24""X4"" THICK FROM BEHIND THE ROOF BOLTER DUST BOX AND THE ROCK SHIFTED CUTTING HIS LEFT FOREARM. HE RECEIVED 8 SUTURES TO CLOSE THE WOUND.