Ireland head coach Joe Schmidt has named a 45-man squad that will assemble for 24-hour camp this weekend.
The players will meet in Johnstown House, in the outskirts of Enfield in Meath following the completion of this weekend's Pro12 fixtures. The players will assemble on Sunday afternoon and disperse at Monday lunchtime.
Leinster welcome Edinburgh on the RDS on Friday night. On Saturday, Ulster are in Italy to face Zebre, while Connacht welcome Munster to Galway.
The camp comes ahead of Ireland's three-test tour to South Africa in June. Schmidt's side will play in Cape Town, Johannesburg and Port Elizabeth.
Connacht's Matt Healy is named in the squad after impressive performances for Connacht, but there is no place for Tommy Bowe, who is returning from injury for Ulster.
Ireland 45-man squad for one-day training camp
Finlay Bealham (Buccaneers/Connacht)
Rory Best (Banbridge/Ulster)
Sean Cronin (St Marys/Leinster)
Ultan Dillane (Corinthians/Connacht)
Keith Earls (Young Munster/Munster)
Tadgh Furlong (Clontarf/Leinster)
Craig Gilroy (Ulster)
Matt Healy (Lansdowne/Connacht)
Cian Healy (Clontarf/Leinster)
Jamie Heaslip (Dublin University/Leinster)
Iain Henderson (Ballynahinch/Ulster)
Robbie Henshaw (Buccaneers/Connacht)
Rob Herring (Ulster)
Paddy Jackson (Dungannon/Ulster)
David Kearney (Lansdowne/Leinster)
Rob Kearney (UCD/Leinster)
David Kilcoyne (UL Bohemians/Munster)
Ian Madigan (Blackrock/Leinster)
Kieran Marmion (Buccaneers/Connacht)
Luke Marshall (Ulster)
Stuart McCloskey (Ballynahinch/Ulster)
Fergus McFadden (Old Belvedere/Leinster)
Jack McGrath (St Marys/Leinster)
Luke McGrath (UCD/Leinster)
Jordi Murphy (Lansdowne/Leinster)
Conor Murray (Garryowen/Munster)
Sean O'Brien (UCD/Leinster)
Tommy O'Donnell (UL Bohemians/Munster)
Stuart Olding (Ulster)
Peter O'Mahony (Cork Constitution/Munster)
Jared Payne (Ulster)
Eoin Reddan (Old Crescent/Leinster)
Garry Ringrose (UCD/Leinster)
Mike Ross (Clontarf/Leinster)
Quinn Roux (Galwegians/Connacht)
Rhys Ruddock (St Marys/Leinster)
Donnacha Ryan (Shannon/Munster)
Jonathan Sexton (St Marys/Leinster)
CJ Stander (Munster)
Richardt Strauss (Old Wesley/Leinster)
Devin Toner (Lansdowne/Leinster)
Andrew Trimble (Ballymena/Ulster)
Josh van der Flier (UCD/Leinster)
Simon Zebo (Cork Constitution/Munster)
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