Members of Australia's swimming team behaved more like schoolboys than Olympians in camp before the London Games, according to a member of the under-fire men's 4x100m freestyle relay team.
Heat swimmer Tommaso D'Orsogna has spoken out about allegations of misbehaviour within the team and said a deterioration of the team's cohesion in recent years contributed to it underperforming in London.
D'Orsogna also claimed some squad members were "putting themselves up higher than the rest of the team."
Admitting he was among those who "misbehaved", D'Orsogna told the Ten Network that members of the men's relay team engaged in "disappointing" behaviour during the team's pre-Games training camp in Manchester, including making prank calls and knocking on bedroom doors.
"I suppose the thing is, people are kind of saying `it's just boys being boys' but unfortunately I come back and I look back on that kind of thing and maybe that would be acceptable in schoolboys rugby ... but this is the Australian Olympic team," 21-year-old D'Orsogna said.
"That kind of behaviour shouldn't be tolerated nor should it be allowed.
"I can definitely confirm that there's no way that any other Australian team that went away to the Olympics would have been mucking around and doing that stuff."
Asked about allegations members of the six-man relay team, also featuring James Magnussen, Eamon Sullivan, Matt Targett, James Roberts and Cameron McEvoy, had also devised an "initiation ritual" that involved taking sleeping drug Stilnox - which was banned from the Australian Olympic team - D'Orsogna said: "I'm not going to be that guy that lies on media.
"I'm not going to be the guy that stands up here and lies to Australia but at the same time I'm just not going to comment."
Australia's swimmers claimed only one gold medal in London, their worst haul since the 1992 Barcelona Games.
Favoured for gold, the men's 4x100m freestyle relay team failed to win a medal when fourth in their final.
The Swimming Australia board is preparing to launch a review into the performance, expected to be headed by former swimmers and board members Kieren Perkins and Tim Ford.
D'Orsogna, who has been on the national team since 2009, said it was vital the review addressed the issues within the squad.
"The thing to do now is make sure we're catching some of the issues that have gone wrong and make sure we don't slide any further down."
Veteran Libby Trickett described the behaviour of the male swimmers as childish.
"I did hear about the knocking on doors and prank phone calls," Trickett told AAP on Thursday.
"I kind of look at this and think this is very childish.
"I'm all for having a good time and being light-hearted but I just think there's a time and place."
Trickett, who won gold as a heat swimmer in the women's 4x100m freestyle relay, called for change and welcomed the review.
"We need to get some structure back," she said.
"This is a huge learning curve.
"It's important to have that strong leadership."
Public pressure may also have affected preparations ahead of the men's disappointing performance in the 4x100m freestyle relay, Trickett said.
"They expected they were going to win that event ... I've learned you can never expect anything," she said.
"Unfortunately for the men, they let the pressure get to themselves."