Brazil's football players have been told they can have sex ahead of World Cup games, providing they do not over-exert themselves.
The guidelines were made public by Brazil boss Luiz Scolari at a press conference yesterday.
Spanish newspaper Sport, quote him as saying: "Sex before matches? If it is normal, yes.
"Done in a balanced way. (But) you have some that are jugglers and so get tired."
Debate has raged for years as to whether sporting performance is positively or negatively effected by bedroom activities ahead of matches, while former Brazilian international Ronaldinho confessed last year it did him no harm.
"During my time at Barcelona I often practised sex before games.
"It was not not a problem but a benefit, as it made me happier before I played on the field."
It certainly didn't do any harm to the late George Best, formerly of Manchester United, renowned for his playboy lifestyle.
Scolari isn't the only one to comment on such guidelines this week.
Costa Rica boss Jorge Pinto offered similar instructions to his players: "Always be good, undoubtedly regulated and controlled."