I had one a bit like that last year - although not deformed. Massive single (as big as some of the other singles who had been alive two weeks), and was just rubbish, couldn't stand...
I milked his mother every few hours and fed him, finally stood after 18 odd hours, still wouldnt suck - i wonder if he was just too big....kept feeding him, thought hed come through the worst at three days and I was getting pretty fed up of feeding him. At which point he died, suddenly. Such are sheep, I'm afraid.