EE WAS SETTING UP MATERIALS FOR A BELT MOVE ON A CONTINUOUS MINER SECTION. HE WAS ATTEMPTING TO PULL BELT OFF A ROLL OF BELTING THAT WAS HUNG FROM THE ROOF. HE TWISTED HIS KNEE WHEN HIS FOOTIN G SLIPPED. HE SHOULD HAVE BEEN AWARE OF HIS TRAVELWAY. NO OTHER FACTORS WERE INVOLVED.