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 9th, while Lehmann is suspended for the away fixture 9 after his red card in their Champions League final defeat by Barcelona.
"Jens is suspended and Thierry will be short as well," Wenger said.