Leinster centre Garry Ringrose says they'll need a step up in performance to defeat Bath in the Heineken Champions Cup this evening.
The holders were forced to work hard for a seven-point victory in the reverse fixture at the Rec last week.
And Ringrose says they'll need to battle again at the Aviva Stadium.
Meanwhile, Munster have the chance to move seven-points clear at the summit of Pool 2.
The Reds are in France to play Castres with Conor Murray and Joey Carbery starting together in the half backs for the first time.
Both games get underway at half-five.
Here is your Munster team for today's Champions Cup clash against Castres at Stade Pierre Fabre!
The match kicks off at 5.30pm Irish time (6.30pm local). #COvMUN #SUAF 🔴 pic.twitter.com/YZRbMDeQWz— Munster Rugby (@Munsterrugby) December 15, 2018