Ключевые слова: 13s, activity, artificial, boy, brisk, concentrated, concept, cones, course, covering, day, doing, exercise, exercises, field, football, grass, green, junior, orange, outdoor, outdoors, performing, persistent, player, practice, purposeful, qualities, quick, rack, running, soccer, soccer player, special, speed, speedy, sport, sports, sports field, sportswear, sporty, stadium, standing, teen, training, turf, uniform, vest, warmup, workout,