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.
Munster will be without Paul O'Connell and Anthony Horgan who were both injured in the game against Ulster while Adam Larkin and Warren Brosnihan are ruled out ot the Ulster side following the Thomond Park encounter.
Connacht will definitely be without John O'Sullivan and must await on fitness reports on Shane Moore, Damien Browne and Michael Swift.
Leinster look best placed of all the provinces in more ways than one. They take on a poorly performing Swansea side and do so with Denis Hickie and Gordon D'Arcy returning from injury to give coach Matt Williams a full squad to choose from.