Australia captain Steve Smith conceded his side let themselves down as a 40-run DLS defeat to England at Edgbaston eliminated them from the ICC Champions Trophy.
Smith (56) and Aaron Finch (68) made useful contributions in Birmingham, but the batting line-up collapsed below them as Adil Rashid and Mark Wood took four wickets apiece to limit Australia to 277-9.
Ben Stokes then hit his third ODI hundred to fire England, already guaranteed of their semi-final spot, to a third win in as many games.
Australia are left to lament washouts against New Zealand and Bangladesh - who make the semi-finals at their expense - but Smith was left frustrated by his side's struggles when the heat was on.
He told a news conference: "Out of the tournament now. So that's never nice.
"I thought we let ourselves down a little bit. We got ourselves in a pretty good position early with the bat, probably 2 for 150, or wherever we were there [161-2 before Moises Henriques was dismissed].
"We kept losing wickets through the middle, and someone in the top four probably needed to go on and make a hundred. We weren't able to do that. We lost 5 for 15 at one point as well, which you can't afford to do against an opposition like England."
Although his side failed to play a full game, Smith did not accept rustiness as an excuse for their underwhelming display.
"You say that we only had one hit, but that should be good enough for the players that we've got on our team," he said.
"We've got some good players in our line-up. We just weren't able to get those partnerships together and get ourselves a score up over 300.
"I thought after the start we had - it was actually quite difficult early on. England probably bowled a fraction short with the newer ball, and when they got it up there, it was quite hard work.
"So that was something that we wanted to learn from when we bowled, and we did that at the start. We got it up there and got the ball to nip about a bit. And then we were just off with our execution.
"And to be fair, Stokesy and Morgs came at us and played very positively, but we were off with our execution, and you can't be off when you're bowling to quality players like that. They're quality players."