Conor Murray admits that Ireland players can't but think of the World Cup in Japan despite having three warm-up games to come.

A 40-man panel are at a warm-weather training camp in the south of Portugal ahead of Saturday week’s clash with England at Twickenham.

Murray didn’t feature in the match-day panel for last Saturday's 29-10 win over Italy, a game that came at the cost of a four-week minimum injury lay-off for back-up out-half Joey Carbery.

"We’ve got games coming up; I haven’t played yet so you’re just looking at that first game, hopefully getting that under the belt and start to build from there," the 30-year-old Munster scrum-half told Irish Rugby TV.

"I’d be lying if I didn’t say people are thinking of Japan and how exciting it could be but we’ve a lot of work to go before we go."

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Joe Schmidt needs to cut nine more names for the final World Cup panel, which is expected to be announced ahead of the second game against Wales on 7 September in Dublin.

"I think I could name certainly 20, maybe a few more," said the head coach when asked about how many of his squad were certain of their places.

The Ireland rugby squad are enjoying a rest day today after a gruelling double session in Quinta do Lago yesterday, where the temperatures are in the high 20s.

Murray, who has 72 Ireland caps, said: "It’s great weather and hopefully the warm conditions will hold us in good stead with a few games to come. It’s nice to get going.

"Everyone is enjoying being here, it’s an incredible facility and everyone is trying to make the most of it.

"The base fitness is there, we’ve worked hard for nearly seven weeks and now it’s getting realistic so lads want to be involved; lads want to be on the pitch.

"We’re in the middle of games now and people are getting exited, this is where you want to be."

Ireland open their World Cup Pool A campaign against Scotland on 22 September and also face hosts Japan, Russia and Samoa. 

Current Ireland squad

Forwards (22)

Rory Best (Banbridge/Ulster) 117 caps

Tadhg Beirne (Lansdowne/Munster) 6 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) 89 caps

Iain Henderson (Queens University/Ulster) 45 caps

Rob Herring (Ballynahinch/Ulster) 8 caps

Dave Kilcoyne (UL Bohemians/Munster) 29 caps

Jean Kleyn (Munster) 1 cap

Jack McGrath (St Marys College/Leinster) 55 caps

Jordi Murphy (Lansdowne/Ulster) 28 caps

Tommy O'Donnell (UL Bohemians/Munster) 13 caps

Peter O’Mahony (Cork Constitution/Munster) 57 caps

Andrew Porter (UCD/Leinster) 15 caps

Rhys Ruddock (Lansdowne/Leinster) 22 caps

James Ryan (UCD/Leinster) 17 caps

John Ryan (Cork Constitution/Munster) 19 caps

Niall Scannell (Dolphin/Munster) 15 caps

CJ Stander (Shannon/Munster) 31 caps

Devin Toner (Lansdowne/Leinster) 65 caps

Josh van der Flier (UCD/Leinster) 17 caps

Backs (18)

Will Addison (Enniskillen/Ulster) 3 caps

Bundee Aki (Galwegians/Connacht) 17 caps

Ross Byrne (UCD/Leinster) 2 caps

Joey Carbery (Clontarf/Munster) 19 caps

Jack Carty (Buccaneers/Connacht) 4 caps

Andrew Conway (Garryowen/Munster) 13 caps

Keith Earls (Young Munster/Munster) 77 caps

Chris Farrell (Young Munster/Munster) 6 caps

Robbie Henshaw (Buccaneers/Leinster) 37 caps

Dave Kearney (Lansdowne/Leinster) 18 caps

Rob Kearney (UCD/Leinster) 90 caps

Jordan Larmour (St Mary’s College/Leinster) 14 caps

Kieran Marmion (Galwegians/Connacht) 26 caps

Luke McGrath (UCD/Leinster) 11 caps

Conor Murray (Garryowen/Munster) 72 caps

Garry Ringrose (UCD/Leinster) 21 caps

Jonathan Sexton (St Marys College/Leinster) 83 caps

Jacob Stockdale (Lurgan/Ulster) 19 caps