Since it is not a cranberry, slap him on the wrist and send him on his way but...
Surely he was not the first and wonder if this was one of the smaller denominations at the final table, or one of the bigger ones. WSOP should implement some kind of penalty and/or ban system. Would serve a couple purposes but mainly would keep people in check more, and also could ban particular players from events for some period if not for good.
One more check in place.