Ireland coach Joe Schmidt has named a 42-man training squad ahead of the Guinness Series internationals.
The squad will assemble at Carton House on Sunday in preparation for the three-match series against Samoa, Australia and New Zealand.
Schmidt spoke briefly about the selections and the objectives for the camp.
"Selection was difficult as it's the first time we have had to narrow our focus a bit and determine a cut off point for players,” Schmidt said.
“A number of selections were very tight which is positive. The group is predominantly tried and proven, but with some newer faces as well.
“It's an opportunity to get to know the players as well as an opportunity to have a look ahead and start to get a little bit of organisation done for the Guinness Series.”
The former Leinster coach left the door open to a several players not named in the squad, saying: “There are a number of players such as Tommy O'Donnell, Michael Bent, Stuart Olding, Andrew Trimble, Craig Gilroy and Felix Jones that were not considered due to injury, but some of these players may well be involved in the autumn as they return to full fitness and resume playing.
“There are also a few players who have not yet had many opportunities to make an impression and a few youngsters who have been impressive in the early rounds of the Pro 12 that we've left to keep working with their provinces.
“There is no doubting the challenge that autumn presents but we're looking forward to getting a little bit of a head start this weekend”
Ireland training squad:
Stephen Archer (Cork Constitution/Munster)
Rory Best (Banbridge/Ulster)
Isaac Boss (Terenure College/Leinster)
Tommy Bowe (Belfast Harlequins/Ulster)
James Coughlan (Dolphin/Munster)
Sean Cronin (St. Mary's College/Leinster)
Gordon D'Arcy (Lansdowne/Leinster)
Keith Earls (Young Munster/Munster)
Luke Fitzgerald (Blackrock College/Leinster)
Declan Fitzpatrick (Dungannon/Ulster)
Cian Healy (Clontarf/Leinster)
Jamie Heaslip (Dublin University/Leinster)
Iain Henderson (Ballynahinch/Ulster)
Chris Henry (Malone/Ulster)
Robbie Henshaw (Buccaneers/Connacht)
Paddy Jackson (Dungannon/Ulster)
Shane Jennings (St. Mary's College/Leinster)
Rob Kearney (UCD/Leinster)
Dave Kearney (Lansdowne/Leinster)
David Kilcoyne (UL Bohemian/Munster)
Ian Madigan (Blackrock College/Leinster)
Luke Marshall (Ballymena/Ulster)
Mike McCarthy (Leinster)
Fergus McFadden (Old Belvedere/Leinster)
Jack McGrath (St. Mary's College/Leinster)
Kevin McLaughlin (St. Mary's College/Leinster)
Niall Morris (Leicester Tigers)
Conor Murray (Garryowen/Munster)
Sean O'Brien (UCD/Leinster)
Donncha O'Callaghan (Cork Constitution/Munster)
Paul O'Connell (Young Munster/Munster)
Brian O'Driscoll (UCD/Leinster)
Peter O'Mahony (Cork Constitution/Munster)
Eoin Reddan (Lansdowne/Leinster)
Mike Ross (Clontarf/Leinster)
Donnacha Ryan (Shannon/Munster)
Jonathan Sexton (Racing Metro 92)
Mike Sherry (Garryowen/Munster)
Richardt Strauss (Old Wesley/Leinster)
Devin Toner (Lansdowne/Leinster)
Dan Tuohy (Ballymena/Ulster)
Simon Zebo (Cork Constitution/Munster)