IRFU chiefs have insisted it would be "inappropriate" to comment directly on the legal cases taken by three Irish rugby players - including two former Ireland internationals - against the Union and World Rugby.
David Corkery, who was capped 27 times and was Ireland's player of the tournament in the 1995 World Cup and played his club rugby for Munster and Bristol, is among the trio.
Ex-international Declan Fitzpatrick who was capped seven times and played for Ulster - and former Leinster and Connacht forward Ben Marshall are the other two seeking damages.