Ireland head coach Joe Schmidt was forced to make two changes to his travelling squad prior to their departure for the tour of Argentina.
Versatile back Keith Earls has been ruled out due to illness (gastroenteritis), while prop Martin Moore, who helped Leinster retain the PRO12 title, will not travel as he is nursing a fractured toe.
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Following confirmation of his withdrawal, Moore said: “Gutted not to be touring but it’s been a dream first season. Thanks for the support and best of luck to the lads taking on Argentina next week.”
Connacht prop Rodney Ah You takes Moore’s place in the Ireland summer tour squad and Leinster’s Noel Reid has been called up in Earls’ absence.
The inclusion of the uncapped duo, who had both been named in the Emerging Ireland squad for the upcoming IRB Nations Cup, increases the number of potential Ireland debutants in Argentina to six.
Ah You was part of the extended training squad for Ireland’s successful Six Nations campaign earlier this year.
The New Zealand-born 25-year-old qualified for Ireland last October, having joined Connacht, under Eric Elwood, in October 2010.
Centre Reid, who turned 24 last week, played three times for the Emerging Ireland tour at the Tbilisi Cup last summer. The Dubliner finished as Leinster’s top try scorer in the PRO12 this season with seven tries.
Ireland Squad:
Backs: Darren Cave, Felix Jones, Rob Kearney, Ian Madigan, Kieran Marmion, Luke Marshall, Fergus McFadden, Conor Murray, Eoin Reddan, Noel Reid, Jonathan Sexton, Andrew Trimble, Simon Zebo.
Forwards: Rodney Ah You, Rory Best, James Cronin , Robbie Diack, Iain Henderson, Chris Henry, Jamie Heaslip, Rob Herring, Dave Kilcoyne, Jack McGrath, Jordi Murphy, Paul O’Connell, Mike Ross, Rhys Ruddock, Devin Toner, Damien Varley.