Arsenal captain Thierry Henry will miss next week's Champions League qualifier due to a lack of pre-season training, while keeper Jens Lehmann is suspended for the third round, first leg tie.
Arsenal are likely to face Croatian side Dinamo Zagreb, who have a 4-1 lead over Lithuanians Ekranas before Wednesday's home leg of their second round qualifier.
Henry was granted a later date to return for training as France reached the World Cup final on July 9, while Lehmann is suspended for the away fixture on either Aug. 8 or 9 after his red card in their Champions League final defeat by Barcelona.
"Jens is suspended and Thierry will be short as well," Wenger told Arsenal's Web site on Tuesday. "He comes back on Aug. 2 so it is very short until August 9."