Oliver Kahn has warned Jens Lehmann he risks missing out on Germany's Euro2008 squad if he stays with Arsenal.
Despite playing second fiddle to Manuel Almunia with the Gunners, Lehmann spurned the chance to move back to Borussia Dortmund last week, citing "personal reasons".
A move to Westphalia would have guaranteed him the regular playing time Germany coach Joachim Low is demanding from all his charges in the build-up to Euro 2008 in Austria and Switzerland.
Kahn, who lost his place in the Germany team to Lehmann for the 2006 World Cup, told the Bild newspaper: "In the past it would have been unimaginable that a national-team goalkeeper would be on the bench for his club.
"That is a problem, and Jens knows it as well. It is a dangerous situation."
Kahn added: "I am surprised that he (Lehmann) is not looking at every possibility to find first-team football."