EE WAS WORKING ON ROTARY PACKER. WENT BEHIND PACKER TO PICK UP BAGS THAT HAD ACCUMULATED ON THE FLOOR. AS HE WAS COMING OUT FROM BEHIND THE PACKER, EE TRIPPED OVER BAG OF CEMENT LAYING ON THE FLOOR. HE TRIPPED CAUSING HIM TO LOSE HIS FOOTING AND HE FELL ON HIS LEFT SIDE. PAIN GRADUALLY WORSENED.