Steve Williams has made three changes to his Ulster side ahead of their St Stephens's Day clash with Leinster.
The caretaker coach has also made adjustments on the replacements bench after last weekend's defeat to Ospreys.
Ireland international halfback combination Isaac Boss and Paddy Wallace return to the starting line-up at the expense of Niall O'Connor and Kieran Campbell, who drop out of the squad entirely, leaving room on the bench for David Humphreys and Paul Marshall.
In the pack Justin Fitzpatrick returns in place of Bryan Young.
New signing Grant Webb could make his Ulster debut after arriving in the province on Tuesday.
"Grant has settled in very well so far, he is a very bright player and is picking things up quickly," Williams said of the 28-year-old Kiwi.
Ireland hooker Rory Best will captain the side.
Leinster coach Michael Cheika still has decisions to make but has opted to replace injured wing Shane Horgan with Luke Fitzgerald.
In a straight swap Fitzgerald will start on the right wing after Horgan injured a rib in the European Cup defeat to Edinburgh last weekend. Girvan Dempsey continues at fullback with Rob Kearney on the left wing.
The Australian has not yet decided if Argentinean Felipe Contepomi is needed at outhalf or centre, while in the pack Shane Jennings, Stephen Keogh and Keith Gleeson are in the running for two backrow positions.
The rest of the pack has a familiar look to it with Jamie Heaslip at number eight, Malcolm O'Kelly and Leo Cullen in the secondrow and Ollie Le Roux, Bernard Jackman and Stan Wright in the frontrow.
