Wolfsburg defender Friedrich out indefinitely

Wolfsburg and Germany defender Arne Friedrich will be out
indefinitely with a back problem that requires an operation.

Friedrich is slated to undergo surgery on Thursday in Munich for
the slipped disc that could not be treated without the
operation.

It will not be known until after the operation how long
Friedrich will be out of action. Friedrich joined the 2009
Bundesliga champions this year from relegated Hertha Berlin.