The Republic of Ireland's Nations League campaign began in deeply disappointing fashion as they fell to a surprise defeat by Armenia in Yerevan.
Eduard Spertsyan scored the only goal, beating Republic keeper Caoimhin Kelleher with a rasping drive from distance 16 minutes from time.
Chiedozie Ogbene squandered the visitors' best chance, misjudging a free header in first-half injury time.
The result extends the Republic's winless run in the Nations League.
It is now 11 games without victory in the competition, having scored just two goals in the process, and with three difficult games against Ukraine and Scotland to come over the next 10 days in Group B1.
An eight-game unbeaten run prior to Saturday's match, including creditable draws at home to Portugal and Belgium, had lifted the mood around the Republic after a difficult start to Stephen Kenny's reign.
However, this result will likely attract further criticism after Kenny's side were stunned by a team ranked 92nd in the world in a game that stirred memories of last year's embarrassing World Cup qualifying defeat by Luxembourg.
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