BACKGROUND AND OBJECTIVE Soccer is currently the most popular sport played in the world.The high incidence of injury in youth soccer is a growing concern.Ankle sprains account for approximately 20%of all injuries in youth soccer players.This study examined whether hip muscle strength is a risk factor for sustaining a lateral ankle sprain among youth soccer players.METHODS This prospective study included youth soccer players who played in the national league of their respective age category.Data collected including demographic,anthropometric and hip strength.Isometric hip strength was measured for the flexors,extensors,abduc-