Ключевые слова: 2012, athlete, athletic, backhand, ball, billie jean king national tennis center, center, competition, competitor, court, doubles, fault, flushing, forehand, grandstand, jokovich, man, match, mixed, muscles, net, new york, novak, ny, point, queens, racket, recreation, serve, set, singles, sneaker, sport, spring, stadium, strings, stroke, summer, tennis, tournament, us, us open, us open tennis, venus, volley, williams, win, winner,