Leinster: Jimmy O'Brien; Tommy O'Brien, Hugh Cooney, Charlie Tector, Andrew Osborne; Ross Byrne, Luke McGrath (capt); Jack Boyle, John McKee, Rabah Slimani, Diarmuid Mangan, Brian Deeny, Alex Soroka, Will Connors, Max Deegan.

Replacements: Stephen Smyth, Ivan Soroka, Rory McGuire, RG Snyman, Scott Penny, Oliver Coffey, Liam Turner, Rob Russell.

Cardiff: Cameron Winnett; Gabriel Hamer-Webb, Rey Lee-Lo, Rory Jennings, Harri Millard; Callum Sheedy, Johan Mulder; Dany Southworth, Liam Belcher, Rhys Litterick, Josh McNally, Rory Thornton, Ben Donnell, Thomas Young, Alun Lawrence.

Replacements: Efan Daniel, Rhys Barratt, Will Davies-King, Seb Davies, Alex Mann, Ellis Bevan, Tinus de Beer, Regan Grace.

Referee: Andrea Piardi (FIR)