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.
It is thought that the options rest between Lyon or Beziers with Munster officials favouring the former because of it's easier accessibility for travelling supporters. However, Beziers although it has a capacity somewhat short of the required 20,000, is the preferred option of Castres.
The other semi final involving Leicester Tigers and Llanelli will be played on Sunday April 28th at the City Ground in Nottingham, home to Nottingham Forest FC.