Ключевые слова: action, activity, adult, athlete, ball, caucasian, competition, competitive, concentration, court, exercise, fit, fitness, game, healthy, hit, holding, indoors, isolated, jumping, leisure, male, man, match, motion, one, people, play, player, players, playing, practice, practicing, professional, racket, recreation, serve, set, smashing, sport, sports, sportswear, standing, strength, studio, summer, tennis, tournament, training, young,