Trent Bridge: Australian captain Ricky Ponting admitted his team's mistakes that saw them crash out of the World Twenty20 at England.
Australia will now have spend an extra two weeks in England before their Ashes tour proper begins.
The ODI world champions succumbed to a six wicket defeat to Sri Lanka on Monday that shattered their world T20 dreams.
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"The attitude around the group was great coming into the tournament, and we had some very good form in the warm-up matches," the Australia skipper said.
"But the way we've played in the last two games, we've made way too many mistakes. You just can't afford to do that against good teams.
Sri Lanka send Aussies crashing out !
"We had a good partnership going early on today. But we lost one wicket, then another on top of that.
"The spinners were able to come on and dictate to us, because we lost wickets in a row.
"We did a reasonable job to get to 160, I thought.
"But then once again with the ball, there were too many extras.
"When you're making mistakes with the ball to good players, they'll make you pay. It has been our mistakes that have let us down in this tournament."
Sri Lanka's mystery spinner Ajantha Mendis played a crucial role with three for 20 in four overs to restrict Australia to 159 for nine.
Ponting praised Mendis who bowled wonderfuly against Aussies on Monday.
"He is a unique kind of bowler," he added. "But in a Twenty20 game, you have to take the challenge up to the bowlers. Today, he got the better of us.
"We knew their spinners would be the most difficult for us to face, and he's certainly had a big impact on the game.
"It was probably the biggest difference in the game, the fact that their spinners did dictate to us through the middle of our innings.
"A lot of their guys have been playing Twenty20 over last few months, but we've had a few guys at the IPL as well.
"It's irrelevant really. We knew what we had to do and unfortunately, in the last two games, we haven't been good enough to do it."