#2 Adelaide, 2006
After an Ashes win at home in 2005, the English team that went to Australia in 2006 was expected to be far more competitive than some of its predecessors.
England lost the first Test but seemed to be in command to at least draw the second one at Adelaide. Paul Collingwood's 206 in the first innings laid the foundations for a mammoth first innings score of 551, and England secured a lead by dismissing Australia for 513.
At the end of the fourth day, they were sitting pretty at 59-1, and a draw seemed like the only likely result.
However, the next morning, Andrew Strauss and Ian Bell fell early and panic set in. Shane Warne, Brett Lee and Glenn McGrath combined to hasten the collapse, and England were all out for 129.
Adelaide, 2006 is undoubtedly one of England's biggest disappointments in Ashes history. The Boxing Day Test at Melbourne ended in an innings defeat, while the final game at Sydney saw Australia romp home by 10 wickets to complete the 5-0 annihilation.
It was the first time since 1920-21 that any team had won the Ashes 5-0, and it was the collapse at Adelaide that triggered it all.
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