Japan inflicted a comprehensive 3-0 defeat on Ireland at the Champions Challenge 1 in Argentina on Sunday.
Ireland coach Andrew Meredith made two changes to his starting XI for the clash with Japan, with John Jermyn and Timothy Cockram replaced in the line-up by Eugene Magee and Michael Watt.
Ireland started the brighter of the two sides with Cockram going close for Ireland in the early exchanges.
However, in the 18th minute, Japan took the lead against the run of play when Kazuhiro Tsubouchi converted a penalty corner.
Ireland saw all five of their first-half penalty corners saved by an inspired Japanese keeper.
Ireland continued where they had left off after the restart by creating a number of chances in front of goal which again they couldn’t convert into scores.
Despite the mounting pressure on the Japanese goal from the Green Machine, Ireland were once again made pay for their profligacy as Japan scored a second goal in the 53rd minute as Tomonori Ono charged into the circle and put the ball into the boards after a sweeping counterattack.
Ireland continued to maraud forward in an effort to get back into the game, but Japan sealed the game six minutes from time when they once again broke brilliantly, with Shinji Kawauchi slamming home from close range.
The defeat leaves Ireland rooted to the bottom of Pool B. Their final group is against South Africa on Tuesday.
Ireland XI: D Harte, C Harte, Jackson, Gormley, Gleghorne, Magee, McCabe, McConnell, Caruth, Watt, Darling.