De Boer, who was elevated to Fremantle's main list on Thursday, will give Fremantle coach Mark Harvey another run-with option to combat Geelong's premiership winning midfield.
Experienced duo Steven Dodd and Kepler Bradley, and rookie Nathan Fyfe have been named as emergencies and remain on standby if Chris Tarrant fails a fitness test on his ankle.
Fremantle's chances of upsetting the reigning premiers were given another boost following the withdrawal of Cats' ruckman Brad Ottens, who joins bookends Cameron Mooney and Matthew Scarlett on the sidelines.
Fremantle team
B: Jay van Berlo, Chris Tarrant, Ryan Crowley
HB: Greg Broughton, Luke McPharlin, Roger Hayden
C: Anthony Morabito, David Mundy, Paul Hasleby
HF: Michael Johnson, Matthew Pavlich, Stephen Hill
F: Des Headland, Chris Mayne, Hayden Ballantyne
Foll: Aaron Sandilands, Michael Barlow, Paul Duffield
I/C: Matthew de Boer, Nick Suban, Adam McPhee,
Alex Silvagni
Emg: Nathan Fyfe, Kepler Bradley, Steven Dodd
In: de Boer
Out: Ibbotson (shoulder)
Geelong team
B: Josh Hunt, Tom Lonergan, Corey Enright
HB: James Kelly, Harry Taylor, Andrew Mackie
C: Jimmy Bartel, Cameron Ling, Joel Selwood
HF: Mitch Duncan, Tom Hawkins, Gary Ablett
F: Steve Johnson, James Podsiadly, Shannon Byrnes
Foll: Mark Blake, Joel Corey, Paul Chapman
I/C: Dawson Simpson*, Ryan Gamble, Nathan Djerrkura, David Wojcinski
Emg: Max Rooke, Taylor Hunt, Simon Hogan
In: Podsiadly, Gamble, Djerrkura, Simpson
Out: Cameron Mooney (suspended), Matthew Scarlett (suspended), Steven Motlop (shoulder), Brad Ottens (knee soreness)*Ottens withdrew on Friday
