We understood that the time was coming for the German problem to be addressed.

BBC: How a blunder finished off the Wall

"Since arriving in Germany I have not been able to train without pain, " said the German who pulled out of the French Open at the second round stage due to the same problem.

BBC: Safin felt out on sorts in his Halle opener

In the German capital, the Berliner Morgenpost returned to the problem of knowing how many companies had used slave labour .

BBC: Press gloomy over slave labour compensation

There is, of course, something of an irony in the widespread belief that it is Jain's nationality that's the problem - which is that Ackermann may walk and talk like a German, but he is in fact Swiss.

BBC: How Deutsch do you have to be to run Deutsche Bank?

An opinion poll by the German Marshall Fund, in November, suggested that a majority of Americans and Europeans regard migration as a problem, not as an opportunity.

ECONOMIST: Global migration and the downturn