Hamish Hartlett and Jarman Impey have been recalled to the side from injury, squeezing out small defender Tom Logan and midfielder Aaron Young.
Logan and Young will lineup for the Magpies against Sturt on Saturday, and act as the Power's emergencies.
Dom Cassisi has been unable to fully recover from minor knee soreness that prevented him from lining up against the Bulldogs and has not been named in the team.
But he will be available, if required, to step up into the team from the named emergency list, as with Young and Logan.
Senior coach Ken Hinkley's side will be fully prepared for the challenge the Crows pose, particularly if the West Lakes-based team produces its best football on Sunday.
"[Adelaide's] form's been a little bit up and down, but their best form is as good as any team in the competition," Hinkley said at his pre-match press conference.
"They've beaten North, they've beaten Collingwood – they've got form on the board at Adelaide Oval which is really scary for us and we need to make sure we bring our best.
"We've been a side that's really consistent all year and we need to make sure we do that again this weekend.
"We're not focusing any further ahead.
"It's a Showdown and we know it's an important game in the state and we don't lose sight of that all, but we also understand it's the next game in our season, our progression."
Meanwhile Sam Gray has been confirmed as the Power's nominated rookie for the rest of the 2014 season.
It means the 2013 A.R. McLean Medallist is eligible to play on the senior list for the remainder of the year, without the need of replacing a long-term injured player.
Gray debuted in Round 4 against Brisbane.
Lewis Stevenson has also been confirmed back on the senior list after recovering from his toe injury earlier this month, while Campbell Heath has been placed on the long-term injury list as he progresses through rehabilitation from LARS surgery to his knee.
Port Adelaide plays the Crows at 3:40pm on Sunday.
Port Adelaide Round 15 AFL team v Adelaide Crows
FB: Jack Hombsch, Alipate Carlile, Tom Jonas
HB: Matthew Broadbent, Jackson Trengove, Jasper Pittard
C: Angus Monfries, Travis Boak, Kane Cornes
HF: Jared Polec, Justin Westhoff, Matt White
FF: Robbie Gray, Jay Schulz, Chad Wingard
Foll: Matthew Lobbe, Ollie Wines, Brad Ebert
Interchange from: Hamish Hartlett, Jarman Impey, Kane Mitchell, Sam Gray
Emergencies: Dom Cassisi, Aaron Young, Tom Logan
In: Hartlett, Impey
Out: Young, Logan
Adelaide Crows Round 15 team v Port Adelaide
FB: Andy Otten, Daniel Talia, Luke Brown
HB: Bret Reilly, Brodie Smith, Matthew Jaensch
C: Sam Kerridge, Patrick Dangerfield, Rory Sloane
HF: Eddie Betts, James Podsiadly, Tom Lynch
FF: Taylor Walker, Josh Jenkins, Matthew Wright
Foll: Sam Jacobs, Richard Douglas, Scott Thompson
Interchange from: Brad Crouch, Rory Laird, Jarryd Lyons, Brodie Martin
Emergencies: Luke Thompson, Jason Porplyzia, Mitch Grigg
In: Lynch, Crouch
Out: Rutten (rested), Mackay (concussion)
See how both teams will line-up here
Port Adelaide Round 12 SANFL squad v Sturt
FB: Nathan Krakouer, Tom Clurey, Cam O’Shea
HB: Jake Neade, Lewis Stevenson, Anthony Biemans
C: Ben Newton, Steven Summerton, Karl Amon
HF: Darcy Byrne-Jones, John Butcher, Sam Russell
FF: Brendon Ah Chee, Mitch Harvey, Mason Shaw
Foll: Angus Bruggemann, Danny Butcher, Robbie Young
Interchange from: Tom Logan, Aaron Young, Ben Sawford, Ben Haren, Henry Slattery
In: Slattery, Young, Logan
Out: Raikiwasa, Hawkins (out of 23)
Sturt Round 12 SANFL squad v Port Adelaide
FB: James McLeay, John Hinge, Guy Page
HB: Matthew Crocker, Kory Beard, Tom Harms
C: Dylan Matsen, Richard Tambling, Christian Calabrese
HF: Patrick Wilson, Matthew Duldig, Sam Smith
FF: Ben Hansen, Michael Coad, James Watt
Foll: Angus Kurtze, John Greenslade, Zane Kirkwood
Interchange from: Tom Bartlett, Ben Kane, Fraser Evans
In: -
Out: -
