Football clubs are always looking for new ways to prevent and reduce the number of injuries that they inevitably experience each season and Napoli has one rule that it credits with keeping its number of muscle injuries low: No sex for two days before each match.
From Football Italia:
"Avoiding sexual activity for two days before a game is fundamental to prevent muscular strains, contractions or inflammations," Professor Alfonso De Nicola [Napoli's chief medic] told the Corriere del Mezzogiorno newspaper.
"It is the rule for our squad. There is also a specific work done by my staff and the fitness coaches which is aimed more at prevention than cure."