Ibbotson has not played since round 18 last year because of an Achilles injury that required surgery.
Clarke, who injured his knee in early January, travelled to Melbourne as an emergency in Freo's round 1 match against Collingwood.
Also among the Freo players playing in Mandurah is Alex Silvagni, who has recovered from ankle surgery.
Bounce down for the Peel v East Perth League match is at 2.05pm.
The full list of Fremantle Dockers playing for Peel is:
Tanner Smith
Anthony Morabito
Alex Silvagni
Garrick Ibbotson
Sam Menegola
Colin Sylvia
Clancee Pearce
Brady Grey
Josh Simpson
Michael Wood
Max Duffy
Michael Apeness
Hayden Crozier
Craig Moller
Zac Clarke
Tom Vandeleur
