Germany boss Joachim Low has reportedly banned his players from having sexual intercourse during the World Cup.
According to La Gazzetta dello Sport, the 58-year-old will not even allow the players to see their families during the competition.
The report adds that the German internationals are allowed to drink alcohol, however, as long as it is measured and in moderation.
"The team is more important than the ego," Low told reporters. "The guys know our behaviour guidelines well, they know what our ambitions are and what our tasks are: no-one can become a world champion, we are all pieces of a puzzle.
"Everyone must be aware of their role within the team. The personal ego must be appeased."
Germany playing their first World Cup group stage fixture against Mexico on June 17, before facing Sweden on June 23 and South Korea on June 27.