Sean O'Brien cited for 'foul play' and faces independent hearing today
Sean O'Brien has to go before Independent Judicial Officer Terry Willis from Australia to answer a charge of "foul play" today.
The Ireland forward was cited by Dougie Hunter for an alleged act contrary to Law 10.4(a) after appearing to strike out at French lock Pascal Pape.
Ireland have already had to deal with the loss of their captain Paul O'Connell, flanker Peter O'Mahony and centre Jared Payne for the rest of the tournament.
The participation of Jonathan Sexton is hanging in the balance from a groin injury, with either Ian Madigan or Paddy Jackson set to deputise.
O'Brien's exclusion could just be one blow too many ahead of the quarter-final against Argentina on Sunday.
However, Los Pumas have worries of their own on after learning their centre Marcelo Bosch has been cited for an alleged tip tackle.