Several sources yesterday told the Otago Daily Times the incident involved a serious assault of a naked Clutha Valley Rugby Club member, allegedly by a former Clutha Rugby Club associate brandishing a pool cue.
One source, who did not wish to be named, said the Clutha Valley man was among several club members, socialising at the venue about 11pm, who stripped off in response to a "club song" being played in the bar.
He said the alleged perpetrator, who had been dining with friends, took exception to the public nudity before matters escalated.
The assault was carried out using a pool cue, leading to serious abdominal bleeding, hospitalisation and surgery for the Clutha Valley man, the source said.
The victim has since been released from hospital.
Clutha president Simon Cleverley said he and fellow club members were "disgusted" by the incident, which had "nothing to do with rugby".
"This is an unfortunate situation, apparently involving a former Clutha club member, which has led to a general feeling of disgust in the community.
"In no way does the club condone or associate itself with the alleged actions of this individual. This is nothing to do with rugby."
Clutha Valley president Mark Shore did not wish to comment in detail.
"We'll let the relevant authorities deal with this, but it's got nothing to do with rugby as far as I'm concerned."
Balclutha police said they were continuing to investigate the incident, and would not comment on the likelihood of charges being laid.
A spokesman said alcohol appeared to have been an aggravating factor in the incident.
"It's another reminder to watch what you're drinking, how you're drinking, and to look out for your mates."
