Arsenal captain Thierry Henry will miss the first leg of the Champions League qualifier on 8 or 9 August because of a lack of fitness.
Henry will not be ready for the start of Arsenal's season
Boss Arsene Wenger feels the tie is too soon for the striker, who has missed pre-season training after playing for France in the World Cup final.
Arsenal are likely to face Dinamo Zagreb, who lead Ekranas 4-1 after their first-leg match.
The Gunners will also be without keeper Jens Lehmann, who is suspended.
Wenger confirmed to the club website: "Jens is suspended and Thierry will be short as well."
He added that Henry will not return to the club until 2 August - only one week before the Gunners kick off in Europe.