Tarrant will bolster Fremantle's defence, while Pearce comes in after having been elevated to the main list on Thursday.
Nick Suban and Steven Dodd come out of the side that beat reigning premier Geelong at Subiaco Oval last week.
New recruit Dylan Roberton has been named as an emergency along with Rhys Palmer and Dodd.
Fremantle Team
Backs: Jay van Berlo Chris Tarrant Ryan Crowley
Half Backs: Greg Broughton Luke McPharlin Roger Hayden
Centre: Anthony Morabito David Mundy Paul Hasleby
Half Forwards: Michael Johnson Matthew Pavlich Stephen Hill
Forwards: Des Headland Chris Mayne Hayden Ballantyne
Followers: Aaron Sandilands Michael Barlow Paul Duffield
Interchange: Matthew de Boer Adam McPhee Alex Silvagni
Clancee Pearce
Emergencies: Rhys Palmer Dylan Roberton Steven Dodd