Lehmann (right) has overtaken Kahn in the pecking order

Lehmann, 36, and Kahn, 36, have been alternating in the role since Jurgen Klinsmann took over as coach in 2004.

"This was the most difficult decision of my time as coach," said Klinsmann. "Of course Oliver is disappointed, but he took it as a real sportsman."

Kahn said: "I am surprised about this decision and absolutely disappointed."

He added: "I will consider my future with the national team over the next few weeks and announce my decision at an appropriate date.

"I will now, in the coming weeks, fully concentrate on my duties with Bayern Munich."

We are convinced that Jens Lehmann fits better with our playing philosophy Germany goalkeeping coach Andreas Kopke

Lehmann told the German Football Association website: "I'm delighted the decision went in my favour.

"I'm going to throw myself into it even more than I have done up to now, so as to live up to the requirements of the World Cup.

"I'll do everything to do justice to the confidence the coaching team has placed in me."

Lehmann has played just 29 times for Germany, making him a novice compared to Kahn, who has 84 caps.

However, while Lehmann has been in fine form for Arsenal, Kahn has been struggling with Bayern, making two mistakes in the recent 2-2 draw with Cologne.

Kahn was Germany captain when they were runners-up at the 2002 World Cup.

He was named player of the tournament, but was at fault for Ronaldo's first goal as Brazil won the final 2-0 in Yokohama.

Goalkeeping coach Andreas Kopke said it was a close decision between the two keepers.

"Both goalkeepers have extraordinary ability but we are convinced that Lehmann fits better with our playing philosophy."