Australia expect England to hit them with ''rough'' tactics in tomorrow's World Cup quarter-final showdown in Marseille.
Wallabies head coach John Connolly revealed he had met with the International Rugby Board's referees' chief Paddy O'Brien and raised specific concerns about hooker Mark Regan.
Connolly fears England will try to unsettle the Wallabies and urged referee Alain Rolland to clamp down.
''England picking Regan at hooker delivers an intent,'' he said. ''We've spoken to Paddy O'Brien to ensure he behaves himself, just to ensure the game's fair and clean.''
Springboks coach Jake White recently accused Regan of not throwing straight down the middle of the line-out and of stepping into the field of play.
That is understood to have been one of the topics raised by Connolly.
After England's second Test defeat to South Africa in the summer, Springboks hooker John Smit remarked that Regan had ''said more to me in two games than my wife has in ten years''.
Regan was also admonished by referee Rolland for overstepping the mark as he celebrated England being awarded a penalty during their defeat to France in Marseille in August.
Australia's forwards coach Michael Foley is concerned his players do not react to any chat or dirty tactics.
The Wallabies to not want to gift Jonny Wilkinson shots at goal but Foley has warned them what to expect.
Replacement lock Hugh McMeniman said: ''Foley has coached some of the boys and he says they're pretty rough.
''You can expect anything from the English really, definitely off the ball stuff and anything if you are lying on the ground; a bit of the scratch on the eye, but all the boys have coped with that before.
''It's not going to have any effect on us.
''I would like to see us play the sort of game we want to play, I get more enjoyment out of that than coming down to fisticuffs on the ground."
No 8 Wycliff Palu impressed the need for discipline.
''There'll be plenty of niggle. The team that controls their discipline will get over the top,'' he said.
''You've just got to control yourself and get them back some other way - a big tackle or something. If you give away a silly penalty, especially with Jonny Wilkinson playing, you give away three points.''
Connolly has included nine members of the Australia side beaten by England in the 2003 World Cup final after Stirling Mortlock recovered from a shoulder injury to resume the captaincy. Scrum-half George Gregan returns to the side.
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