There will be an open draw on Sunday for the semi-final pairings which will also included Munster A, who defeated the Ulster Ravens 20-9 at Ravenhill on Friday.
Scorers for Leinster A: (B Macken 2 tries; C Gilsenan, D Hudson try each; N Reid 2 pens, 3 cons).
LEINSTER: D Kearney; D Hudson, B Macken, C O’Shea, A Boyle; N Reid, J Cooney; J McGrath (c), A Dundon, N White, N Keogh, M Flanagan, J Murphy, C Gilsenan, L Auva’a.
Replacements: T Sexton for Dundon, C Marsh for O’Shea, (both 65); J O’Connell for McGrath, L McGrath for Cooney, J Conan for Gilsenan, B Daly for Reid, (all 72)
PONTYPRIDD: H Thomson; L Williams, G Dacey, D Lockyer, M Nuthall; S Humberstone, R Downes; C Phillips, H Dowden, P Palmer, C Hill, R Savage, C Dicomidis (c), W O’Connor, D Godfrey.
Replacements: G Lucas for Downes (12); J Thomas for Savage (53); R Harford for Palmer, G Williams for Lockyer, (both 56); T Hetherington for Godfrey (57); G Wyatt for Humberstone (75); R Williams for Dowden (72).
Referee: G McDonald, RFU.