م.م محمد عبد الحسين مجلي م.م محمد عبد الحسين مجلي. (2026). The effect of exercises using a blended training method (skill-tactical) on developing the skills of covering and marking in football players under 17 years of age   . Wasit Journal of Sports Sciences, 28(2), 243-453. https://doi.org/10.31185/wjoss.1184