Blackrock College clubman Ian Madigan will make his 'A' team debut at full-back in a fast back-three, alongside Gary Brown and Simon Keogh.
Over the next month-and-a-half, Leinster 'A' have six fixtures lined up, beginning with Thursday's clash with Saracens 'A'.
The other games are as follows:
Monday, November 17
Bristol XV v Leinster 'A', 2.30pm
Friday, November 21
Leinster 'A' v Ospreys XV, Donnybrook/UCD, venue tbc, 2.30pm
Leinster 'A' v Munster 'A', Donnybrook, 2.30pm
Monday, December 22
Leinster 'A' v Ireland Under-20s, Donnybrook, kick-off tbc
Monday, December 29
Leinster 'A' v Ulster 'A', Donnybrook, 2.30pm
LEINSTER 'A' (v Saracens 'A'): Ian Madigan; Gary Brown, Fergus McFadden, Kyle Tonetti, Simon Keogh; Jonathan Sexton, Chris Keane; Jamie Hagan, John Fogarty, Stephen Knoop, Conor McInerney, Trevor Hogan, Kevin McLaughlin, Sean O'Brien, Stephen Keogh (capt).
Replacements: Ruaidhri Murphy, Brian Blaney, Eoin Sheriff, Paul Ryan, Paul O'Donohoe, James Power, Shane Monahan.