Ireland Under-20s star Sam Prendergast will make his Leinster debut after being handed the out-half jersey for their clash with the Emirates Lions (Saturday, 3pm) .Leo Cullen has send a largely inexperienced side to South Africa with top spot in the table already secured.Chris Cosgrave starts at full-back.On the wings, Dave Kearney is set to make his 150th league appearance, while there is a welcome return for Tommy O'Brien, who makes his first appearance of the season after recovering from a knee injury.In the centre, Liam Turner is joined by Ben Brownlee, with Nick McCarthy partnering Prendergast at scrum-half.In the front row, Georgia international Vakhtang Abdaladze is set for his first Leinster start.
He will pack down with Michael Milne and Lee Barron.Brian Deeny joins South African international Jason Jenkins in the second row, with Ruddock, Will Connors and Max Deegan forming the back-row.On the bench, five academy players are set to feature with Alex Soroka, James Culhane, Ben Murphy, Charlie Tector and Rob Russell all looking to impress.Leinster: Chris Cosgrave; Tommy O'Brien, Liam Turner, Ben Brownlee, Dave Kearney; Sam Prendergast, Nick McCarthy; Michael Milne.
Lee Barron, Vakhtang Abdaladze; Brian Deeny, Jason Jenkins; Rhys Ruddock (capt), Will Connors, Max Deegan.Replacements: Tadgh McElroy, Ed Byrne, Thomas Clarkson, Alex Soroka, James Culhane, Ben Murphy, Charlie Tector, Rob Russell.Meanwhile, Ireland out-half Joey Carbery has been left out of the Munster squad for their encounter with the DHL Stormers (Saturday, 5.15pm).Loosehead prop Jeremy Loughman has recovered from a thigh injury and makes his first appearance since December in an all-changed front row.Hooker Diarmuid Barron and tighthead prop