Australia captain Aaron Finch and pace bowler Mitchell Starc stole the show as the holders eased to an 87-run win over Sri Lanka at the Oval on Saturday.
Finch equalled his career-best one-day international score with a masterful 153 and Steve Smith chipped in with 73 as Australia scored 334-7.
Needing a World Cup record run-chase to claim a shock win, Sri Lanka got off to a flying start thanks to a first-wicket partnership of 115 between captain Dimuth Karunaratne and Kusal Perera.
But Perera departed for 52 and when Karunaratne fell on 97 the game swung back in Australia's direction.
Starc was the catalyst with a fiery spell of three wickets in six balls. Australia eventually dismissed Sri Lanka for 247 thanks in large part to his 4-55 from 10 overs.
Here's how Twitter reacted to the match:
Finch was busy today
Highest individual scores by captains for each team in World Cup:
— Bharath Seervi (@SeerviBharath) June 15, 2019
Here goes one more record in Finch's lap
Australia fans and supporters in good mood
— Tom Moody (@TomMoodyCricket) June 15, 2019
More praise for Finch
— Megan Schutt (@megan_schutt) June 15, 2019
Poor effort from Lankans
After an inspiring, exhilarating start, Sri Lanka have squandered the opportunity to score an upset with some poor - really poor -batting by the middle order — Cricketwallah (@cricketwallah) June 15, 2019
With inputs from AFP
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Finch had said his team decided against taking a knee after raising the matter with England skipper Eoin Morgan because "education around it is more important than the protest".
"There was so much going on leading up to us getting here, maybe we should have talked more about it," Langer said.
Australia, cruising to a modest victory target of 232, were dismissed for 207 as England levelled this three-match series at 1-1.