All the action from the Pool A match in Adelaide.
Latest action appears first - scroll down for earlier news.
73 mins: Quesada slots a penalty which puts Argentina within a point of Ireland. Ireland 16-15 Argentina.
65 mins: A dreadful kick by Corleto sets up an Irish attack which culminates in a penalty for offside which O'Gara puts between the posts. Ireland 16-12 Argentina.
60 mins: Ronan O'Gara restores Ireland's lead with a superb pressure penalty. Ireland 13-12 Argentina.
57 mins: Argentine full-back Ignacio Corleto hammers over a stunning long-range drop goal to put his team two points ahead. Ireland 10-12 Argentina.
55 mins: Ireland make a double substitution with Ronan O'Gara and Marcus Horan replacing David Humphreys and Reggie Corrigan.
53 mins: After some fierce forward exchanges, Denis Hickie makes a great break deep into Argentine territory but Humphreys can't hold the pass.
43 mins: Quesada misses a long range penalty attempt.
Half-time: Ireland 10-9 Argentina.
38 mins: Argentina continue to dominate possession and must be confident about their prospects with wind advantage to follow in the second half.
33 mins: Malcolm O'Kelly is penalised for handling in a ruck and Quesada adds the simple three points from in front of the posts. Ireland 10-9 Argentina.
29 mins: The news from the Irish medical staff is that Quinlan has dislocated his shoulder.
28 mins: Quesada replies with an important drop goal for Argentina to cut Ireland's lead to four points. Ireland 10-6 Argentina.
27 mins: David Humphreys increases Ireland's lead with a penalty from in front of the posts after Argentina are caught offside. Ireland 10-3 Argentina.
24 mins: John Hayes returns to the Irish front row.
23 mins: Argentina put the Irish under pressure just short of the line but Shane Horgan's interception averts the danger.
22 mins: Eric Miller replaces Quinlan in the Irish pack.
19 mins: Almost out of nothing, Ireland claim a dramatic try with Keith Wood's burst setting up Alan Quinlan for the score. David Humphreys notches the conversion but Quinlan is forced to leave the field after being injured when scoring the try. Ireland 7-3 Argentina.
18 mins: Ireland are forced to make a blood substitution with John Hayes temporarily replaced by Marcus Horan.
15 mins: The match becomes scrappy with both teams losing ball in their own line-out.
7 mins: With the Argentines continuing to dominate possession they earn a penalty and Quesada makes no mistake from 35 metres. Ireland 0-3 Argentina.
3 mins: Argentina produce early pressure but Quesada overhits his kick for the corner and Shane Horgan is able to avert the danger.
0738GMT: Ireland kick-off with the Argentines playing into the wind.
Ireland coach Eddie O'Sullivan has opted to meet the physical challenge of the Pumas head-on by including Alan Quinlan and Simon Easterby as the two flankers alongside Victor Costello.
David Humphreys gets the fly-half role ahead of Ronan O'Gara.
Argentina have restored Gonzalo Quesada to stand-off for their crucial pool fixture.
The Pumas have switched Felipe Contepomi, who started the tournament opener against Australia at number 10, to centre in a full-strength team.
There are 14 changes from the side which started Wednesday's 50-3 win over Romania, with only right wing Jose Maria Nunez Piossek retained.
Captain Agustin Pichot has been named at scrum-half despite being unable to train on Friday.
Argentina: I Corleto; J Piossek, J Orengo, F Contepomi, D Albanese; G Quesada, A Pichot (captain); R Grau, F Mendez, M Reggiardo, I Lobbe, R Alvarez, L Ostiglia, R Martin, G Longo
Replacements: M Ledesma, M Scelzco, P Albacete, S Phelan, N Fernandez Miranda, M Gaitain, Juan M Hernandez
Ireland: G Dempsey; S Horgan, B O'Driscoll, K Maggs, D Hickie; D Humphreys, P Stringer; R Corrigan, K Wood, J Hayes (captain), M O'Kelly, P O'Connell, S Easterby, A Quinlan, V Costello
Replacements: S Byrne, M Horan, D O'Callaghan, E Miller, G Easterby, R O'Gara, J Kelly