The Magners League champions' replacements bench will be confirmed closer to kick-off.
Over 14,500 tickets have now been sold for the Leinster-Ulster showdown.
Tickets are on sale from Ticketmaster outlets nationwide and from the Leinster Rugby Store and Spar in Donnybrook.
Tickets will also be available to purchase from Ticketmaster Box Offices at the RDS from 1.30pm on Sunday.
The RBS 6 Nations Trophy is set to be the star attraction at an action-packed day of entertainment at the RDS.
The trophy will be paraded prior to kick-off by the returning Grand Slam heroes before the Harrington Brothers take to the stage with their rendition of Molly Malone 2009.
Speaking ahead of Sunday's return to league action, Leinster coach Michael Cheika said: "There are some very big games coming up over the next three weeks in the context of retaining the Magners League title.
"The derby nature of the next two games (against Ulster and Munster), as well as the European qualification (against Harlequins). It's going to be in an interesting combination of which players play and when.
"I think that Ulster will be buoyed by their win against Munster at Thomond Park and they will definitely be targeting that 'away double.'
"We got two very good results away in Wales and everybody's excited about getting back to playing regularly again.
"You can feel the energy and enthusiasm in training and I'd like to think that we have improved a little bit over that time.
"We know that our title aspirations are in the next two games, but all that we can manage is our result against Ulster."
LEINSTER (v Ulster): Girvan Dempsey; Shane Horgan, Fergus McFadden, Gordon D'Arcy, Isa Nacewa; Felipe Contepomi, Chris Whitaker; Cian Healy, Bernard Jackman, Stan Wright, Leo Cullen (capt), Malcolm O'Kelly, Cameron Jowitt, Shane Jennings, Rocky Elsom
Replacements (from): John Fogarty, CJ Van Der Linde, Ronan McCormack, Trevor Hogan, Devin Toner, Sean O'Brien, Paul O'Donohoe, Jonathan Sexton, Simon Keogh.