The EPCR match officials selection committee has appointed Ireland’s George Clancy and Wayne Barnes of England to referee next weekend’s European Rugby Champions Cup semi-finals.

Clancy, who will be refereeing his second tournament semi-final, takes charge of the ASM Clermont Auvergne v Saracens tie at Stade Geoffroy-Guichard in Saint-Etienne on Saturday while Wayne Barnes, appointed for a third tournament semi-final, will be in the middle when holders RC Toulon and Leinster Rugby meet the following day at the Stade Velodrome in Marseille.

The semi-finals get under way on Friday with the first of the Challenge Cup last-four matches between Edinburgh Rugby and the Newport Gwent Dragons at BT Murrayfield Stadium which will be refereed by JP Doyle of England.

Ireland’s John Lacey will be in charge of the second Challenge Cup semi-final featuring the all-Aviva Premiership clash of Gloucester Rugby and the Exeter Chiefs at Kingsholm Stadium on Saturday evening.

Semi-final match officials

Champions Cup

Saturday : ASM Clermont Auvergne v Saracens
Stade Geoffroy-Guichard 16.15

Referee : George Clancy (Ire) ; Assistant referees : Leighton Hodges (Wal), Dudley Phillips (Ire) ; TMO :Simon McDowell (Ire)

Sunday: RC Toulon v Leinster Rugby
Stade Velodrome 16.15

Referee: Wayne Barnes (Eng); Assistant referees: Nigel Owens (Wal), Greg Garner (Eng); TMO: Graham Hughes (Eng)

Challenge Cup

Friday: Edinburgh Rugby v Newport Gwent Dragons
BT Murrayfield Stadium 19.45

Referee: JP Doyle (Eng); Assistant referees: Luke Pearce (Eng), Marius Mitrea (Ita); TMO: Marshall Kilgore (Ire)

Saturday: Gloucester Rugby v Exeter Chiefs
Kingsholm Stadium 19.45

Referee: John Lacey (Ire); Assistant referees: Jerome Garces (Fra), Pascal Gauzere (Fra); TMO: Jim Yuille (Sco)