Approximately a decade ago, the FIFA Medical Assessment and Research Centre (F-MARC) developed an injury prevention program so-called "The 11" which was aimed to reduce injuries among male and female amateur football players aged 14 years and older. The "11" was designed on the basis of information and data which was available of research on injury and structured as warm-up program to reduce ankle and knee sprains, groin and hamstring strains in football players.