Queensland are confident the referees will keep control of tonight's third State of Origin match in Sydney following ill-feeling between the two camps in the lead-up.
NSW are facing a rare series clean sweep and are upset by reports out of the Queensland camp saying they used "grubby" tactics in the opening two games.
There's concern the game could get out of hand but Queensland coach Mal Meninga is confident the referees will crack down on any foul play.
Meninga says the whistleblowers have done a fantastic job during the series - claims disputed by NSW who have finished on the wrong end of the penalty count in seven of the last eight Origins.

