Mike McCarthy will come into replace the Irish skipper.
Underdog victory over South Africa will live long in the memory.
Boys In Green survived the loss of captain Paul O'Connell and flyhalf Johnny Sexton in impressive victory.
Joe Schmidt is hopeful two of Ireland's three injury victims are available for the quarter-final.
Joe Schmidt's side avoid New Zealand but could be without four key players for Pumas clash.
Neither team can qualify for the quarter-finals but qualification for Japan 2019 remains up for grabs.
Both teams had already been assured of progressing thanks to their victories over England.
Pool D heavyweights meet in Cardiff to determine who will avoid a quarter-final date with New Zealand.
Argentina finish their group as runners up whatever happens.
Lancaster admits it would be hard to walk away after campaign ends with Uruguay thrashing.
Nick Easter and Jack Nowell both score hat-tricks but Lancaster faces tougher challenges ahead.
Dejected tournament hosts finish their woeful campaign with a Pool A dead rubber at the Etihad Stadium.
Australia and Wales battle for top spot in Pool A.
Scotland can secure their place in the quarter-finals with a third Pool B victory at St James' Park.
The defending champions win 47-9 to set up a quarter final with either France or Ireland.
New Zealand are seeking to continue their 100% record this tournament against underdogs Tonga.
Reports from South Africa suggest the former Springbok and Italy coach has been contacted over job.
Head coach warns that this is not a game Australia can afford to slack in.
Sam Warburton was unable to sleep after teammate Dan Lydiate said he had seen a ghost.
The Springboks are a win away from becoming the first team from Pool C to book a last eight place.
Essay published by London Business School argues England's Rugby World Cup exit could hurt economy.
Lancaster makes nine alterations to the side that lost to Australia.
Sport and business can be like oil and water – there are times when they just don't mix.
IBTimes UK sports editor Nick Howson analyses England's dismal exit from the Rugby World Cup.
Ireland and France join New Zealand, Australia and Wales in last eight.
England's final World Cup match against Uruguay is on 10 October.
Rugby Football Union chief executive Ian Ritchie says there will be 'no knee-jerk reactions' after defeat.
Ireland look to book their place in the quarter-finals against Italy at the Olympic Stadium.
Japan rekindled the fire that helped them stun South Africa to crush rudderless and ragged Samoa 26-5.
Flyhalf Bernard Foley did most to break English hearts by racking up 28 points, including two sparkling tries.