Bruff referee George Clancy will take charge of the first semi-final between the Ospreys and Glasgow Warriors at the Liberty Stadium, Swansea, on Friday night (7.05pm).
Welsh official Nigel Owens has been named as the referee for Saturday night’s crunch Magners League semi-final clash between Leinster and Munster at the RDS (8pm).
Ospreys v Glasgow Warriors:
Referee: George Clancy (Ireland – 36th Magners League game)
Assistant Referees: Dudley Phillips (Ireland), Leo Colgan (Ireland)
TMO: Bertie Smith (Ireland)
Leinster v Munster:
Referee: Nigel Owens (Wales – 64th Magners League game)
Assistant Referees: James Jones (Wales), Nigel Whitehouse (Wales)
TMO: Hugh Watkins (Wales)