Quade Cooper has been left disappointed by his sin-binning in the Wallabies' World Cup win over Uruguay, with coach Michael Cheika confirming an appeal would be lodged.
The 27-year-old was sent to the sin-bin for tackling Uruguayan No.9 Agustin Ormaechea high and then body-slamming him into the turf.
It is Cooper's third yellow card in his past four tests - with sin-bins also coming against Argentina and New Zealand.
All three offences have been high tackles, perhaps suggesting a need to refine his technique.
"It was disappointing to be sin-binned as it was such an awesome atmosphere out there," Cooper said.