The 29-year-old climbed a fence in front of the Cottbus fans after the crucial victory and shouted unsporting remarks about other clubs into a megaphone.

The DFB are to review television images of the incidents and have asked Tremmel to provide a statement explaining his actions.

"It was a very emotional moment after such an important win and I certainly did not want to insult anybody," Tremmel explained to Lausitzer Rundschau newspaper.