Ключевые слова: 2015, athlete, atp, australia, australian, backhand, ball, billie, center, championship, court, exercise, federation, flushing, game, grand, hard, hewitt, jean, king, lleyton, match, national, net, new, nike, open, players, points, practice, prize, professional, racket, retirement, serve, set, singles, slam, sports, stadium, strings, tennis, title, tournament, training, us, veteran, volley, yonex, york,