Alleged accident happened when miner moved rock to hold drawbar down on pump.He told other that he thought he hurt his back.he finished week out w/o incident.He called on Monday and said he was going to family dr and she put him off work until 12/27. we sent him to our occupational Dr on 12/14 and he immediately release him for lighduty as of 12/20 he has not reported back to work.