AZ Alkmaar 2-1 Athletic
Aritz Aduriz's excellent strike brought hope, but Markus Henriksen and Eneko Bóveda's own goal extended the Basque side's poor start to the season.
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- The Dutch club join Athletic on three points in Group L
- AZ score twice for the sixth successive European game
- Athletic have won just one of their last eight European away matches
- The Spanish team are seven away fixtures without a win this season
- Next games: AZ v Augsburg, Partizan v Athletic (22 October)