It will be Murray’s second start of the season following his return from a neck injury. CJ Stander is also set to return for Johan Van Graan’s side who currently sit top of Pool Two after two games. Chris Farrell continues his midfield partnership with Rory Scannell.
Venue: Thomond Park, Limerick Date: Sunday, 9 December Kick-off: 13:00 GMT
Last year’s beaten semi-finalists are back to full strength with their full compliment of Ireland internationals having returned to the squad following the November internationals.
Much excitement surrounded the potential half-back partnership of Carbery and Murray following the former’s move from Leinster.
Castres sit second in Pool Two having held on to defeat Exeter Chiefs despite playing the majority of the game with 14-men following Maamu Vaipulu’s first half red card.
The number eight retains his place in the back row while French international Scott Spedding returns at full-back.
Munster: Haley; Conway, Farrell, Scannell, Earls; Carbery, Murray; Kilcoyne, Scannell, Ryan; Beirne, Holland; O’Mahony (C), Cloete, Stander.
Replacements: O’Byrne, Loughman, Parker, Wycherley, Botha, Mathewson, Hanrahan, Arnold.
Castres: Spedding; Batlle, Combezou, Vialelle, Paris; Urdapilleta, Radosavljevic; Tichit, Jenneker, Kotze, Jacquet, Lassalle, Babillot, Gimeno, Tulou.
Replacements: Firmin, Fa’anunu, Clerc, Samson, Caballero, Caminati, Laveau, Kockott.