Jacob Stockdale admits that players cannot fully shake off concerns about picking up costly injuries as Ireland begin a four-game World Cup warm-up series.
Joe Schmidt's side face Italy on Saturday at the Aviva Stadium (live on RTÉ2) before a trip to face England at Twickenham on 24 August.
That is then followed by away and home ties with Wales on 31 August and 7 September.
Scotland provide the opposition for the opening World Cup game in Yokohama on 22 September.
The Ulster winger is assured of a place in the 31-man squad after a brilliant breakthrough season in 2018.
The 23-year old has scored 14 tries in 19 international games.
Geordan Murphy (2003) and David Wallace (2011) both missed out on the showpiece tournament after suffering injuries in warm-up games.
"There is that worry of injury going into a World Cup warm-up game when realistically you are looking ahead to that World Cup and saying I want to make sure I’m there," Stockdale told RTÉ Sport.
"But at the same time it’s your last opportunity to make sure you are playing your best rugby going into the World Cup.
"I don’t think anybody is going to be trotting around at 50%, they are going to be giving it everything they have.
"I have no doubt that the coaches and the medical staff will make sure that they look after us enough that we can go out and put in a 100% performance in those warm-up games."
A 45-man training squad has been in pre-season training over the last five weeks and the IRFU today confirmed that Connacht lock Ultan Dillane and Munster centre Rory Scannell have returned to their respective provinces.
The team for the game against Conor O'Shea's Italy will be named on Thursday afternoon.
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IRELAND Guinness Summer Series Squad v Italy
Forwards (23)
Finlay Bealham (Buccaneers/Connacht) 9 caps
Rory Best (Banbridge/Ulster) 117 caps
Tadhg Beirne (Lansdowne/Munster) 5 caps
Jack Conan (Old Belvedere/Leinster) 14 caps
Sean Cronin (St Mary's College/Leinster) 68 caps
Tadhg Furlong (Clontarf/Leinster) 33 caps
Cian Healy (Clontarf/Leinster) 88 caps
Iain Henderson (Queens University/Ulster) 44 caps
Rob Herring (Ballynahinch/Ulster) 7 caps
Dave Kilcoyne (UL Bohemians/Munster) 29 caps
Jean Kleyn (Munster) 0 caps
Jack McGrath (St Marys College/Leinster) 54 caps
Jordi Murphy (Lansdowne/Ulster) 27 caps
Tommy O’Donnell (UL Bohemians/Munster) 12 caps
Peter O’Mahony (Cork Constitution/Munster) 57 caps
Andrew Porter (UCD/Leinster) 14 caps
Rhys Ruddock (Lansdowne/Leinster) 21 caps
James Ryan (UCD/Leinster) 17 caps
John Ryan (Cork Constitution/Munster) 18 caps
Niall Scannell (Dolphin/Munster) 14 caps
CJ Stander (Shannon/Munster) 31 caps
Devin Toner (Lansdowne/Leinster) 64 caps
Josh van der Flier (UCD/Leinster) 17 caps
Backs (20)
Will Addison (Enniskillen/Ulster) 3 caps
Bundee Aki (Galwegians/Connacht) 17 caps
Ross Byrne (UCD/Leinster) 2 caps
Joey Carbery (Clontarf/Munster) 18 caps
Jack Carty (Buccaneers/Connacht) 3 caps
Andrew Conway (Garryowen/Munster) 12 caps
John Cooney (Terenure College/Ulster) 8 caps
Keith Earls (Young Munster/Munster) 77 caps
Chris Farrell (Young Munster/Munster) 5 caps
Mike Haley (Munster) 0 caps
Robbie Henshaw (Buccaneers/Leinster) 37 caps
Dave Kearney (Lansdowne/Leinster) 17 caps
Rob Kearney (UCD/Leinster) 90 caps
Jordan Larmour (St Mary’s College/Leinster) 13 caps
Kieran Marmion (Galwegians/Connacht) 25 caps
Luke McGrath (UCD/Leinster) 10 caps
Conor Murray (Garryowen/Munster) 72 caps
Garry Ringrose (UCD/Leinster) 20 caps
Jonathan Sexton (St Marys College/Leinster) 83 caps
Jacob Stockdale (Lurgan/Ulster) 19 caps
Follow Ireland v Italy (2pm) via our live blog on RTÉ.ie/sport and the News Now app. Watch live coverage on RTÉ2 from 1.30pm and listen to commentary on RTÉ Radio 1's Saturday Sport.
