INJURED WAS CUTTING THE FACE OF #1 ENTRY ON #2 UNIT WHEN SOME ROCK FELL ON TOP OF THE MINER, INJURED RESET THE MINER AND CONTINUED CUTTING THE FACE AND A PIECE OF ROCK SLID OFF THE MINER AND HIT INJURED ON THE LEFT KNEE CAUSING SOARNESS. INJURED FINISHED THE SHIFT AND WENT TO THE DOCTOR THE NEXT DAY AND RECEIVED A PRESCRIPTION FOR SOARNESS.