Scrum half Paul Marshall, who scored the province's bonus point try against the Dragons, is in line to make his 100th appearance for Ulster in the derby match.
With just two matches remaining for Ulster in the RaboDirect PRO12's league phase, the fixture is highly important as Mark Anscombe's men chase a home semi-final.
Ulster are top of the table, three points ahead of second-placed Leinster and four points ahead of Glasgow Warriors who are in third position.
ULSTER Squad (v Connacht) - Backs (11): Ruan Pienaar, Jared Payne, Paddy Jackson, Paul Marshall, Peter Nelson, Tommy Bowe, Andrew Trimble, Michael Allen, Adam D'Arcy, Stuart Olding, Darren Cave.
Forwards (14): Chris Henry, Callum Black, Rory Best, Robbie Diack, Dan Tuohy, Lewis Stevenson, Declan Fitzpatrick, Nick Williams, Rob Herring, John Afoa, Ricky Lutton, Tom Court, Iain Henderson, Joahnn Muller.