The Blues opened the scoring in the seventh minute with an Eoghan Hickey penalty and that lead was stretched to 10 after Hickey converted a Gary Brown try.

A Rhys Oakley try cut the deficit to five at the break. The Welsh side went ahead courtesy of a Leigh Davies try converted by Matthew Jones and the Crawshays held a slender 12-10 lead for the first time in the game.

Stephen Grissing replied for Leinster with a superb try in the 50th minute which Hickey converted, But a late Dafydd Lockyer effort - converted by Jones . . . stole the game for the Welsh.