MINER HAD JUST FINISHED CUTTING 5 RIGHT HEADING IN 001 MAINS AND WAS STARTING TO BACK OUT WHEN THE EMPLOYEE WENT TO THE MINER TO CHECK ON THE PUMP THAT WAS GOING DOWN. A PIECE OF ROCK HAD FALL EN ON THE MINER. AS THE OPERATOR WAS BACKING THEMINER OUT, THE ROCK SLID OFF THE MINER STRIKING THE EMPLOYEE ON THE LEFT FOOT WHICH REQUIRED 3 SUTURES.