Newton and Impey are emergencies for Port Adelaide's AFL team playing Richmond on Sunday afternoon, but will first play for the Magpies in the important semi final on Saturday.
Should the Magpies win, they will progress to the grand final to be played on the second-last weekend of September.
John Butcher (back) and Cam Hitchcock (ankle) will miss the game with injury, while Kane Mitchell has been promoted as the primary emergency for the Power on Sunday afternoon.
The Magpies also welcome back Campbell Heath from a long-term knee recovery, Anthony Biemans, Sam Gordon and Robbie Young to the final 23-man squad.
That team will be cut to the final 21 players on Saturday.
Action at the Adelaide Oval gets underway at 5:40pm. Tickets cost $15 for adults, $10 concession, $4 juniors aged 4-17, two adults and two juniors for $30 and Essential Power members admitted free.
Port Adelaide SANFL second semi final 23-man squad v Norwood
Saturday 6 September 2014, 5:40pm, Adelaide Oval
FB: Nathan Krakouer, Daniel Flynn, Tom Clurey
HB: Campbell Heath, Lewis Stevenson, Karl Amon
C: Robbie Young, Steven Summerton, Paul Stewart
HF: Darcy Byrne-Jones, Anthony Biemans, Aaron Young
FF: Brendon Ah Chee, Mitch Harvey, Mason Shaw
Foll: Angus Bruggemann, Sam Gray, Tom Logan
Interchange from: Sam Gordon, Sam Russell, Henry Slattery, Cam Hitchcock, Jake Johansen
In: Heath, Biemans, Gordon, Impey, R. Young
Out: J. Butcher (back), Mitchell (AFL), Hitchcock (ankle)
