After last week's disappointing defeat away to Edinburgh, Leinster coach Matt O'Connor has made six changes for their clash with Ulster.
Brendan Macken is promoted from the bench to replaces Brian O'Driscoll in the centre. Dave Kearney and Jimmy Goperth are also drafted into the back line.
Mike McCarthy comes into the second row to join captain Leo Cullen.
Sean O'Brien and Rhys Ruddock both come in to join Jordi Murphy in the back row.
A win for the 'Boys in Blue' would move them above Ulster and back into the top four.
Ulster have made nine changes with Paddy Jackson named at number 10, while Robbie Diack has been handed the captains armband.
That game kicks off at the RDS tomorrow at 6:45.
LEINSTER:
15: Zane Kirchner
14: Dave Kearney
13: Brendan Macken
12: Noel Reid
11: Luke Fitzgerald
10: Jimmy Gopperth
9: Isaac Boss
1: Michael Bent
2: Aaron Dundon
3: Martin Moore
4: Leo Cullen CAPTAIN
5: Mike McCarthy
6: Rhys Ruddock
7: Sean O'Brien
8: Jordi Murphy
REPLACEMENTS:
16: James Tracy
17: Mike Ross
18: Jack O'Connell
19: Tom Denton
20: Dominic Ryan
21: Luke McGrath
22: Ian Madigan
23: Darragh Fanning
