Ключевые слова: 2019, action, american, ao, ao 2019, arena, athlete, atp, australia, australian, backhand, ball, center, champion, championship, court, forehand, frances, frances tiafoe, game, laver, match, melbourne, national, net, new, open, overhead, player, players, points, practice, professional, racket, rod, serve, set, singles, slam, sport, sports, stadium, tennis, tiafoe, title, tournament, training, united states, usa, volley,