Australia cruised to an eight-wicket win over demoralised England with more than a day to spare today to claim a 4-0 series lead and stand on the cusp of an Ashes whitewash.
Led by a century from opener Chris Rogers and a 136-run stand with Shane Watson, the Australians had few problems getting the required 201 runs before tea on the fourth day to seal England's fate at the Melbourne Cricket Ground.
England contributed to their own demise with two confidence-sapping dropped catches by skipper Alastair Cook early in the day to take all the steam out of the dispirited tourists.
The two fielding blunders from the team leader were psychological body blows for England and evidence of batsman Kevin Pietersen's comments on Saturday in a television interview that the tourists were "mentally fragile".
England now face the monumental challenge of fighting off an Australian clean sweep of the series in the fifth and final Test, starting in Sydney on Friday.
"I think it's a very special win. A lot of people thought we would come here complacent and not have the same willpower to continue to play the same way as in the first three Tests," Australian captain Michael Clarke told reporters.
"For the first time in this series we found ourselves behind in the game and over the last couple of days we've been able to turn that around and win convincingly today, so I think the boys deserve a lot of credit."
Playing on his home ground, veteran left-hander Rogers claimed his second Test century after scoring 110 against England in the last series earlier this year at Durham.
Rogers, 36, was out caught behind for 116 off 155 balls cutting Monty Panesar, with his team some 31 runs short of victory. Rogers ran Mitchell Johnson close for
At the end, Watson was unbeaten on 83 with skipper Michael Clarke not out six with Australia 231 for two.
It was the best fourth innings run chase in 51 years at the Melbourne Cricket Ground since England's 237 for three in 1962-63.
While England have been on the end of heavy defeats this Test series, Sunday was a particularly dispiriting loss for England, who were well on top and led the home side by 116 with 10 wickets in hand after lunch on Saturday's third day.
Man-of-the-match Mitchell Johnson and spinner Nathan Lyon staged a dramatic turnaround, with England bowled out for 179, leaving Australia with what became a