Bayern Munich president Uli Hoeness has warned the club's foreign players to either start learning German or potentially face a fine.
The Bundesliga champions have brought in players such as Douglas Costa, Renato Sanches and Kingsley Coman in recent years, who have been struggling to pick up the language.
Hoeness feels speaking German is crucial to their integration, though, and has told the club's foreign stars to step up their attempts, citing head coach Carlo Ancelotti as a good example.
"The main language in the dressing room should be German again or there will be small groups," Hoeness told Sport Bild.