Welsh referee Nigel Owens will take charge of Munster's Heineken Cup quarter-final against Toulouse at Thomond Park, the tournament organisers confirmed this afternoon.

Remarkably, although the teams have met each other previously in the knockout stages the match on Saturday, April 5th will be the first time Toulouse play in the Limerick citadel.

Jerome Garces will run the rule over Ulster's home tie with Saracens later on the same day while Sunday's showdown between defending champions Toulon and 2012 winners Leinster will see Wayne Barnes as the man in the middle.

In the other quarter-final, between Clermont and Leicester, Alain Rolland will lead an all-Irish team of officials at the Stade Marcel-Michelin

Heineken Cup quarter-finals

Saturday, April 5th

Munster v Toulouse (Thomond Park, 1.30pm)
Referee: Nigel Owens (Wal); Assistant referee 1: JP Doyle (Eng); Assistant referee 2: Neil Hennessy (Wal); TMO: Derek Bevan (Wal)

ASM Clermont Auvergne v Leicester (Stade Marcel-Michelin, 4pm)
Referee: Alain Rolland (Ire); Assistant referee 1: George Clancy (Ire); Assistant referee 2: David Wilkinson (Ire); TMO: Simon McDowell (Ire)

Ulster v Saracens (Ravenhill Stadium 6.30pm)
Referee: Jerome Garces (Fra); Assistant referee 1: Mathieu Raynal (Fra); Assistant referee 2: Cedric Marchat (Fra); TMO: Eric Gauzins (Fra)

Sunday, April 6th

Toulon v Leinster (Stade Felix Mayol 4.30pm)
Referee: Wayne Barnes (Eng); Assistant referee 1: Greg Garner (Eng); Assistant referee 2: Luke Pearce (Eng); TMO: Graham Hughes (Eng)