There are, and bothe are defenders who played for Crewe. I think we know the one we are talking about though. Played left back at the Withdean, scored a cracking free kick. Now at Preston. That's all the same lad.
the other one is at Exeter now, and I can't really recall him at all.
Similarly Marcos Painter. Played regularly at centre-back in Swansea's L1 title win. Swans mate of mine can't understand at all why we'd play him at left back.