Eddie O'Sullivan's Ireland failed to make the quarter-finals

The Irish failed to get out of the pool stage for the first time as a result of their 30-15 defeat by Argentina.

"I am totally committed to this job. I have a contract and I intend to honour it," said under-fire O'Sullivan.

"I have the appetite for the job and I want to see it out. This is a tough moment and things have not gone to plan but there is no reason to walk away."

O'Sullivan, who signed a new four-year contract before the tournament, admitted Ireland had endured a disappointing last match against Argentina.

"We needed to score four tries and gave it our best shot but we did not get enough field position to make it happen," he said.

"I feel sorry for the players. They played their guts out but it was not to be and that is how it goes.

"It has been a tough World Cup for us. I have no complaints really."

Skipper Brian O'Driscoll, who went over for one of two Irish tries along with Geordan Murphy, admitted his side had come up against formidable opponents.

"In parts we played some great rugby, we tried to go out and play," he said.

"It was difficult, we were playing against a team that refuses to play in their own half.

"They controlled it well in fairness. They are difficult to play against, particularly when you have to chase the four tries."

Argentina's Leinster player Felipe Contepomi, who kicked three penalties and a conversion, said it the victory was one of the most memorable moments of his career.

"It is a very proud moment for the team, for Argentina rugby and a proud moment for the nation," he said.

"I know people back home are following this World Cup like a football World Cup.

"People are talking about us as favourites for the quarter-final now, but if we are favourites we need to take on that responsibility, work really hard and try to play our best game next week."