Skipper James Slipper bemoaned the Queensland Reds' ill-discipline after his side were downed 24-6 by the ACT Brumbies in their Super Rugby match in Canberra on Saturday.
Fullback Jesse Mogg scored two tries as the Brumbies dominated the Reds at the breakdown to claim a well-deserved win.
The Reds, who finished 2012 as the top Australian side, were let down by a lack of discipline in the game and were punished by referee Andrew Lees.
The winning margin could have been even greater but the Brumbies kickers had an off night, missing four penalty attempts and failing to convert Mogg's first try.
Slipper conceded: "It was really disappointing how we played tonight.
"The ill-discipline really hurt us and we let the Brumbies get good field position, and we just couldn't hang on.
"I don't think we gained any momentum through the forwards and we couldn't deliver any good ball to the backs."
Brumbies captain Ben Mowen was delighted to avenge defeats to the Reds last year, saying: "They beat us twice last year and you try not to carry things over between seasons, but that really hurt us and we weren't happy.
"We left a lot of opportunities out there but I'm really happy with that."
Mowen thought his team's forward pack, which has been bolstered by the recruitment of Wallaby flanker David Pocock, had laid the foundation for the win.
"The breakdown is obviously a huge strength for the Reds and I think we matched them there tonight," he said.