EE was operating a continuous miner. He was loading some push-up loose coal cleaned by a scoop when a pinner steel came out of the tail of the miner striking him on the left shoulder. He continued to work but his shoulder got worse. He went back to DR on 2-8-05 & was told to stay off work until an MRI can be made. He is scheduled for an MRI on 2-14-05. Missing work on 2-8-05.