“That will be one of the challenges raised for the new season, solving this question fairly and confirming to the clubs who is allowed in the stadium,” the German football federation (DFB) president told the Sportbuzzer portal on Friday.

There is no exact blueprint for a return of fans. “Humility and flexibility is still demanded and we need a high acceptance in society for these solutions,” he said.

The starting date of the next Bundesliga season is not yet confirmed but will definitely be after Germany open their Nations League campaign at home to Spain on September 3 in Stuttgart.

Curtius said the DFB was “in good converations” with those politically responsible and he expects “to develop a concept that allows us to play in front of fans again in autumn.

“Of course not in front of full stadiums and of course with the caveat there is no second wave [of infections].”