Scarlets: Blair Murray; Tom Rogers, Joe Roberts, Johnny Williams, Ellis Mee; Sam Costelow, Gareth Davies; Alec Hepburn, Ryan Elias, Henry Thomas, Alex Craig, Sam Lousi, Vaea Fifita, Josh Macleod (capt), Taine Plumtree.

Replacements: Marnus van der Merwe, Louie Trevett, Sam Wainwright, Jac Price, Jarrod Taylor, Archie Hughes, Ioan Lloyd, Macs Page.

Leinster: Ciarán Frawley; Andrew Osborne, Liam Turner, Jamie Osborne, Jimmy O'Brien; Ross Byrne, Fintan Gunne; Cian Healy, Ronan Kelleher (captain), Thomas Clarkson, Ryan Baird, Brian Deeny, Alex Soroka, Will Connors, James Culhane.

Replacements: Gus McCarthy, Jack Boyle, Rabah Slimani, Diarmuid Mangan, Scott Penny, Cormac Foley, Charlie Tector, Ruben Moloney.

Referee: Mike Adamson (SRU)

Assistant referees: Matthew Leon & Aaron Perry (WRU)

TMO: Colin Brett (SRU)