10 Dec, 12:23
Ireland's John Lacey will referee his first ever RBS 6 Nations match in February, while Alain Rolland is also included in the Elite Panel in what is his last season.
Table toppers Ulster will have David Humphreys and Neil Doak at half-back for their tricky excursion to play a Cardiff Blues side fighting for a place in next year's Heineken Cup.
Celtic League. Friday and April. 7.05: Celtic Warriors v Munster, Sardis Road, Andy Ireland (S). BBCW 7.30: The Borders v Llanelli Scarlets, Netherdale, Marshall Kilgore (I). 7.30: Edinburgh Rugby v The Dragons Meadowbank, Alan Lewis (I) 7.30: Leinster Lions v Glasgow Rugby, Donnybrook, Nigel H Williams (W). Saturday 3rd April. 2.30:Connacht v N-S Ospreys Sportsground, Graeme Hannah (S). 5.30: Cardiff Blues v Ulster, Arms Park, Gregg Davies (S) S4C