Wales Under-21s have suffered a setback in their bid for automatic qualification for the 2019 European Championships, losing 4-0 to Bosnia-Herzegovina in Bangor.
Amer Gojak broke the deadlock for the visitors in the 26th minute before giving Robert Page's charges a mountain to climb by completing his brace in the second period.
The closing stages remained equally one-sided, with Marijan Cavar and Luka Manelo adding their names to the scoresheet in the final 20 minutes.
The result leaves Wales - who have previously beaten Switzerland and Liechtenstein and lost to Portugal - three points behind leaders Romania in Group 8 with a game in hand.
Page's side's next qualifier is against the Romanians on November 14.