The IRFU insists player welfare is "of paramount importance" as it prepares to face a legal case from former players who say they suffered brain injuries while playing rugby.
Solicitor firm Maguire McClafferty have confirmed that they are representing a number of unnamed clients in a legal action that could come before the courts in the coming months.
World Rugby, the RFU and WRU are already facing a class-action lawsuit that was launched on Monday by over 185 players.
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The IRFU responded to the development in a statement issued this evening.
"Everyone in rugby has been moved by the personal accounts of former players as reported in the media," the statement began.
"Player welfare is of paramount importance to the IRFU and we are constantly reviewing safety protocols for all players.
"Our approach, based on scientific evidence, involves a commitment to ongoing education, monitoring and application of safety protocols across the game, including proactively managing elite player game time with a focus on injury prevention and oversight.
"No proceedings have been served upon the IRFU to-date."
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