Johnny Sexton misses out on Leinster's Champions Cup quarter-final against Ulster as Ross Byrne starts at 10 in the Aviva Stadium this Saturday.
Josh van der Flier, Devin Toner and Robbie Henshaw all miss out through injury while James Lowe falls victim to the foreign players limit as Scott Fardy starts at lock alongside James Ryan, while Jamison Gibson-Park is named among the replacements.
Rob Kearney only makes the bench as his brother Dave starts in the back three with Jordan Larmour and Adam Byrne.
Rhys Ruddock captains the side, while Mick Kearney and Andrew Porter are both set for their 50th Leinster appearances off the bench.
Jack Conan seeking to wreck Ulster's Champions Cup ambitions at the Aviva Stadium tonight
Ulster will miss Will Addison and Craig Gilroy through injury but Iain Henderson has recovered well enough to partner Kieran Treadwell in the second row.
Henderson sprained his knee against France in the Six Nations but is fit enough to play tomorrow.
Jordi Murphy starts in the back row, making his first appearance against his old club since his summer move.
Luke Marshall also returns to the bench after a torn ACL kept him out for the past ten months.
Leinster: J Larmour, A Byrne, G Ringrose, R O’Loughlin, D Kearney, R Byrne, L McGrath, C Healy, S Cronin, T Furlong, S Fardy, J Ryan, R Ruddock (c), S O’Brien, J Conan.
Replacements: J Tracy, E Byrne, A Porter, M Kearney, D Leavy, J Gibson-Park, N Reid, R Kearney.
Ulster: M Lowry; R Baloucoune, D Cave, S McCloskey, J Stockdale; B Burns, J Cooney; E O’Sullivan, R Best (captain), M Moore, I Henderson, K Treadwell, N Timoney, J Murphy, M Coetzee.
Replacements: R Herring, A Warwick, W Herbst, A O’Connor, S Reidy, D Shanahan, L Marshall, A Kernohan.
