Awesome Australia off to a flier
The game's watershed came in the 16th over when Damien Martyn was caught off a no-ball from Chaminda Vaas. He certainly did not hear the call and was trooping off before he became aware of the reprieve. He celebrated by smacking Vaas for a massive six over cover and never looked back. With Simon Katich, he added 74 in 11 overs and Australia disappeared into the distance.
Sri Lanka began brightly after putting Australia in, dismissing both Adam Gilchrist and Ricky Ponting for 13 in a rather low-key beginning, Gilchrist missing an attempted heave over midwicket and Ponting, after an indifferent stay, gave Ruchira Perera the charge and missed. At the 15-over drinks break, Australia were 2 for 64 and Sri Lanka, coming into this match in dreadful one-day form, sniffed the slightest of openings.
But the real strength of this Australian side is that it bats in depth, and that frees their batsmen to play their shots with little fear. There was a certain inevitability that Katich, who had been trying to run himself out all afternoon - surviving several close calls because the fielders kept missing the stumps - would go that way. His luck finally ended when he had made 60, Tillakaratne Dilshan scoring a direct hit after a classic yes-no mix-up with Martyn.
To the crowd's delight, that brought in Andrew Symonds, and rather than check the momentum it just resulted in it going into overdrive. It was one of those days when everything he tried came off, and even when he mistimed his strokes the end result was still the same. With Martyn he added 106 at more than a run a ball and Marvan Atapattu could do little other than shuffle his bowlers around. The outcome was the same whatever he did, although the fielding was at times sloppy - Atapattu himself dropped Martyn - and against the world champions, that's a luxury no side can afford.
Clarke and Michael Hussey then dismembered the corpse, improvising at will and smashing the ball to all parts as they added 90 in a little under 11 overs at the death.
If Sri Lanka faced a daunting ask when they started their innings, it soon became almost impossible when Australia caught them cold. Brett Lee's opening two-wicket burst and a third from Nathan Bracken all but ended this match as a contest as they slid to 3 for 31.
Lee struck with his second ball, bring one back to clip Upul Tharanga's off stump, and then in his second over Jehan Mubarak nicked one low to Ponting at second slip. With Australia's fielding and bowling every bit as good as their batting had been, the game took on an increasingly one-sided feel, and when Kumar Sangakarra's attempted leg-side flick looped to Clarke at mid-off, it was a question of by how much Australia would win.
The remainder of Sri Lanka's innings was of little consequence. Michael Vandort opted for crease occupation - always a good strategy in a one-day run chase - and made a turgid 48 off 117 balls before he ran himself out to end his and the crowd's misery. Mahela Jayawardene made a breezy fifty of no consequence, James Hopes bowled a tidy spell, but it was all academic.
Australia, in case anyone doubted it, looked to be back to their opposition-crushing best, but Sri Lanka have some serious issues to overcome. Since October they have won only two of the 12 ODIs they have played, and both of those have been in dead matches. On today's evidence, that record is unlikely to improve during this series.
Adam Gilchrist lbw b Perera 13 (1 for 25)
Missed attempting swing over midwicket
Ricky Ponting b Perera 13 (2 for 58)
Gave bowler the charge and missed
Simon Katich run out (Dilshan) 60 (3 for 132)
Yes-no call, sent back, direct hit
Damien Martyn b Fernando 70 (4 for 238)
Missed big heave
Andrew Symonds c Dilshan b Mubarak 66 (5 for 241)
Freak dismissal, deflected off non-striker's heel
Upal Tharanga b Lee 2 (1 for 2)
Inswinger clipped off stump
Jehan Mubarak c Ponting b Lee 2 (2 for 11)
Edged low to second slip
Kumar Sangakkara c Martyn b Bracken 16 (3 for 32)
Leading edge to attempted leg-side flick, looped to mid-off
Tillakaratne Dilshan b Bracken 29 (4 for 93)
Missed straight one
Michael Vandort run out (Ponting) 49 (5 for 118)
Poor judgment, well short
Marvan Atapattu c Katich b Hogg 8 (6 for 137)
Acrobatic catch above head at widish mid-off
Mahela Jayawardene c & b Hopes 50 (7 for 176)
Bowler held back ball, chipped return catch
Martin Williamson is managing editor of Cricinfo