1 RIGHT 5 SOUTH LONGWALL FACE. MAN WAS BETWEEN #1 SHIELD AND MINE RIB, SHIELDMAN ON #2 SHIELD RAISE TOES OF #1 SHIELD. MAN SLID CRIB BLOCKS UNDER TOES OF #1 SHIELD TO RAISE TOES OFF THE BOTTOM . WHEN FINISHED HE STEPPED BACK AND RIB ROLLED OUT BETWEEN TWO DUKE JACKS AND HIT HIS LEFT KNEE.