World Cup-bound Panama saw their hopes of a morale-boosting pre-tournament win crumble after just four minutes in a 1-0 defeat to Norway.
But Hernan Dario Gomez's men will be hoping for an upturn in fortunes after this latest setback ahead of the June 14-July 15 showpiece.
At the Ulleval stadium in Oslo, Norway, who are not qualified for the World Cup, took a fourth-minute lead through Joshua King.
Worryingly for Panama, the visitors struggled to create scoring chances, compounding a pre-World Cup preparation that has produced draws with Wales (1-1) and Northern Ireland (0-0) and defeats to Iran (2-1), Denmark (1-0) and Switzerland (6-0).
Panama kick off their campaign against Belgium in Sochi on June 18, the same day group G opponents Tunisia host England.
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