McLaughlin has made no changes to the Ulster forwards'. While the backs' see only one change; Paddy Wallace is not selected, whilst Jonny Shiels is.
Commenting on Saturday's top of the table clash, Ulster hooker Andy Kyriacou said: "Obviously last weekend was a massive disappointment for us, but we're not going to dwell on it. The only game that matters now is Leinster, at Ravenhill, on Saturday.
"It's first versus second and everyone is really excited about it. I think that goes for the supporters as well. Ravenhill was really kicking in terms of atmosphere for the Bath game and I'd expect it to be the same at the weekend."
Not available for selection: Rory Best, David Pollock, Bryn Cunningham, Matt McCullough, TJ Anderson.
ULSTER SQUAD FORWARDS
Nigel Brady, Brendon Botha, Bryan Young, Ed O'Donoghue, Andy Kyriacou, Stephen Ferris, Robbie Diack, Chris Henry, Willie Faloon, Tamaiti Horua, Tom Court, Dan Tuohy, Ryan Caldwell, Declan Fitzpatrick.
ULSTER SQUAD BACKS
Timoci Nagusa, Darren Cave, Simon Danielli, Ian Whitten, Isaac Boss, Ian Humphreys, Andrew Trimble, Paul Marshall, Clinton Schifcofske, Niall O'Connor, Jonny Shiels.
The playing 22 will be named at 12 noon on Friday.
Terrace and Prom tickets are still available from the usual outlets.
Guinness PRO12
Suite 208, Alexandra House,
The Sweepstakes
Ballsbridge, Dublin 4, Ireland