Munster second row Tom Ahern has been ruled out of the Ireland 'A' clash with an All Blacks 15 on Friday.
Gavin Thornbury of Connacht replaces Ahern, while Ulster duo Nathan Doak and Tom Stewart will both join the squad later this week.
A total of 49 players are now in the Irish camp, with the world champions South Africa visiting the Aviva Stadium next Saturday.
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