Ireland's hopes of qualifying for the Olympic Games were dashed in heartbreaking fashion in Auckland.
The Irish men beat Argentina 1-0 in their final pool match in the qualifier but they missed out on a place in Saturday's final on goal difference.
Argentina will face New Zealand on Saturday with only the winners earning a place in Beijing.
Ronan Gormley scored Ireland's goal in the second half but they required a 2-0 win to keep their Olympic hopes alive.
New Zealand's 2-0 win over France confirmed Ireland's exit from the competition.
Argentina, New Zealand and Ireland all ended the pool play with four wins from five matches.
Ireland will look back on their controversial 3-1 defeat by New Zealand last Sunday when the Irish felt that a crucial goal by the hosts should have been disallowed.
Argentina had the better of the first half action against Ireland but the game remained scoreless at the interval.
But Ireland made the breakthrough 18 minutes into the second half when a Mark Gleghorne flick from a penalty corner was saved and Ronan Gormley was on hand to put the rebound in.
Argentina were content to focus on defence in the final stages off the match, to deny Ireland the extra goal they needed to take overtake them on goal difference.