There does appear to be tradition of having organised fights between Irish gypsy/traveller men, nearly always stand up boxing.
This is a woman fight wher the rules are more liberal. I think it is genuine and would seem to actually replicate some of the many "backyard" stories posted on this forum
http://www.youtube.com/watch?v=lFuT17fykjE&feature=g-all-f&context=G289443fFAAAAAAAADAA