I quite liked Nathan Clarke and believe he would have been that "lump" in L2.
He had a couple of bad games toby fayre, but the rest I thought he was solid.
I saw him a few times while there, never had the urge to punch him in the face though, perhaps that says a lot about me and your question says a lot about you?
Aye, his missus used to troll on twitter/facebook saying "thanks for paying for our holidays/house/car" etc. to some people trolling O'donovan himself, calling him shite (which he was toby fayre)