Germany's head coach Julian Nagelsmann was dissatisfied with the quality of the pitch at the Deutsche Bank Park stadium.
"I'm not concerned about playing football anymore, but about the high risk of players getting injured.
It's not so bad with short players, but with big players it's like driving on summer tires in winter. It can lead to an accident. I don't want anyone to miss six months because of an injury.
This pitch is very viscous and soft," Nagelsmann was quoted as saying by Sky Sport Germany.