The trio will add experience to a youthful squad that has registered impressive pre-season wins against Bayonne, Leicester and Newcastle.
New signings Sean Doyle, Nick Williams and Michael Heaney will make their competitive debuts for the Province if selected.
Ulster Squad to play Glasgow Warriors, RaboDirect PRO12, Fri 31st Aug (7.05pm), Ravenhill
Forwards (15)
Niall Annett
Adam Macklin
Callum Black
John Afoa
Lewis Stevenson
Neil McComb
Mike McComish
Johann Muller
Robbie Diack
Sean Doyle
Nick Williams
Rob Herring
Tom Court
Nigel Brady
Declan Fitzpatrick
Backs (11)
Peter Nelson
Jared Payne
Niall O'Connor
Michael Heaney
Craig Gilroy
Paddy Jackson
Luke Marshall
Paul Marshall
Chris Farrell
Michael Allen
Darren Cave
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