The Diamonds lead 42-34 after three quarters. Jamie-Lee Price is on for Maddy Proud and Sophie Dwyer has replaced Kiera Austin at goal attack.
Proud is said to be doing OK after that nasty knock in the third quarter.
Australia vs England Netball Game 2: Diamonds dominate Roses in demolition job
The Diamonds have completed a perfect 2022, sealing a dominant netball series victory over England in game two on Sunday night.
Australia has defeated England 56-48 on Sunday night to take an unassailable 2-0 series lead against England.
The Diamonds got off to a flyer and led by five goals at quarter time and they were never headed from there, coasting to victory in front of a packed crowd of 14,117 at Sydney's Qudos Bank Arena.
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Amy Parmenter produced a player of the match performance, snaring countless deflections and intercepts to push her case for the starting wing defence bib at next year's World Cup in South Africa.
Game one hero Donnell Wallam was set for more game time but was ruled out of the clash just hours before the first centre pass after coming down with a stomach illness.
The Diamonds tried another new shooting combination and Cara Koenen and Kiera Austin slotted in seamlessly.
Austin was particularly impressive, shooting 22 goals from 24 attempts including a perfect 14/14 in the first half.
England rallied at times but ultimately had no answers for Australia, with Diamonds coach Stacey Marinkovich having the luxury of bring Sophie Dwyer on to goal attack for the last quarter.
There was a scary moment in the third quarter when Diamonds midcourter Maddy Proud was flattened by a stray elbow from Austin in a case of some brutal friendly fire.
The Diamonds confirmed Proud had concussion symptoms and will miss the final game of the series under the 12-day concussion protocols.
There is no trophy on the line in this series but it completes a dominant 2022 for the Diamonds - who won the Quad Series in January, the Commonwealth Games gold medal, reclaimed the Constellation Cup from New Zealand and have now dominated the old enemy.
The series wraps up with game three in Brisbane on Thursday.
Updates
Diamonds up big with a quarter to go
Maddy Proud cops heavy blow, taken off
Ouch. Diamonds midcourter Maddy Proud has been taken off the court after she copped a nasty knock midway through the third quarter.
Proud was jumping up to contest a ball at the top of the shooting circle when teammate Kiera Austin accidentally elbowed her in the chin in a case of friendly fire.
Proud stayed down on the court for several moments before play was eventually stopped and she was helped from the court.
Jamie-Lee Price has come back on court while Proud goes down to the change rooms.
Diamonds lead at halftime
England fought back in the second quarter but the Diamonds lead 28-24 at halftime.
Kiera Austin is having an absolute blinder at goal attack, shooting 14 goals without missing.
The Roses haven't quite got firing in the shooting circle, with Helen Housby struggling to have an impact alongside Eleanor Cardwell.
Diamonds dominate 1st quarter
It was all Australia in the first quarter as the Diamonds flew out to a 16-11 lead at the first break.
The Diamonds midcourt was running riot as Amy Parmenter snared countless deflections, while the shooting combination of Cara Koenen and Kiera Austin is working well.
Starting line-ups
Donnell Wallam had been poised to start at goal shooter but the Diamonds will once again mix things up with a different starting seven.
Cara Koenen has been brought in at goal shooter alongside Kiera Austin at goal attack.
For England, dynamo defender Funmi Fudoju has come into the starting line-up after impressing off the bench in the series opener.
Australia starting VII: Cara Koenen, Kiera Austin, Paige Hadley, Jamie-Lee Price, Amy Parmenter, Jo Weston, Sarah Klau
Australia bench: Sophie Dwyer, Sophie Garbin, Courtney Bruce, Maddy Proud, Maddy Turner
England starting VII: Eleanor Cardwell, Helen Housby, Natalie Metcalf, Jade Clarke, Laura Malcolm, Fran Williams, Funmi Fadoju
England bench: Imogen Allison, Sophie Drakeford-Lewis, Layla Guscoth, Hannah Joseph, Geva Mentor
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