On Saturday, they face the Czech Republic in Prague knowing a win would be a huge step towards qualification, whereas defeat would put them under pressure for the first time in the qualifying campaign.

Germany currently lead qualifying Group D only on goal difference ahead of Saturday's opponents.

Low does not have his first-choice squad available with injuries forcing him to call several debutants into his party.

At the same time, many of his regular choices are not in their best form and, according to Low, may have their minds on other things.

He called his squad to their first training session on Monday morning and has not given them a break yet.

That is set to continue until after the match in the Czech capital as Low drills into his team the importance of this fixture.

"Some players are thinking about possible transfers or how their clubs are going to do as the end of the Bundesliga season slowly approaches, but we have got to ignore these things," he said.

"I am not interested in that at all this week because we have to concentrate on our game."

Jens Lehmann is the subject of intense speculation regarding his future, but the Arsenal goalkeeper would not be drawn on his personal situation.

"I am in a situation at the moment where I have to make a decision at some point, but there is no fixed date for that to be made," he said.

"Every week, a new club is linked with me, while everybody knows I am also happy at Arsenal.

"I'd rather not talk about it all."

Instead, he too has been doing his homework on the Czech Republic and knows he is in for a busy night.

He will come up against former Dortmund team-mate Jan Koller, while present Arsenal colleague Tomas Rosicky will also be looking to get one over on him.

"Koller is a good player and almost all of the attacks go via him," added Lehmann.

"I know nothing is going to be easy pickings in the 18-yard box.

"Rosicky is very dangerous and the only advantage we can take is that he has had a few niggling injuries recently and maybe is not fit for the full 90 minutes."

Low was keeping his cards a little closer to his chest and not discussing the strengths or the weaknesses of the opposition.

He said: "We have seen some (weaknesses), but if we reveal them, then their coach has time to think about tactical changes.

"They are an attack-minded team and generally have some defensive problems against teams who play quickly and directly.

"We have seen some areas where we can hurt them."

On Wednesday morning, Michael Ballack, Torsten Frings and Bastian Schweinsteiger were all receiving treatment for knocks rather than training with the rest of the squad.

All three should be fit to play this weekend, but Low has worries about several other positions, including in defence and attack.

Bayer Leverkusen's Gonzalo Castro could make his debut at right-back with Arne Friedrich out, while Jan Schlaudraff is a candidate for a start in attack as Kevin Kuranyi is also struggling with a knock and Miroslav Klose is injured.

Stefan Kiessling is another option to partner Lukas Podolski in attack.