| l’Argentine (7) |
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| Baez, Sebastian | | Bagnis, Facundo | | Cerundolo, Francisco | | Cerundolo, Juan Manuel | | Coria, Federico | | Delbonis, Federico | | Schwartzman, Diego |
| | l’Australie (6) |
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| De Minaur, Alex | | Kokkinakis, Thanasi | | Kyrgios, Nick | | Millman, John | | Popyrin, Alexei | | Thompson, Jordan |
| | la Belgique (1) |
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| Goffin, David |
| | la Bulgarie (1) |
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| Dimitrov, Grigor |
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| le Canada (2) |
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| Auger-Aliassime, Felix | | Shapovalov, Denis |
| | la Chile (1) |
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| Garin, Christian |
| | la Chine (1) |
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| Shang, Juncheng |
| | la Colombie (1) |
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| Galan, Daniel Elahi |
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| la Croatie (2) |
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| Cilic, Marin | | Coric, Borna |
| | l’Equateur (1) |
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| Gomez, Emilio |
| | la Finlande (1) |
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| Ruusuvuori, Emil |
| | la France (10) |
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| Bonzi, Benjamin | | Gasquet, Richard | | Gaston, Hugo | | Humbert, Ugo | | Mannarino, Adrian | | Monfils, Gael | | Paire, Benoit | | Rinderknech, Arthur | | Simon, Gilles | | Tsonga, Jo-Wilfried |
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| la Géorgie (1) |
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| Basilashvili, Nikoloz |
| | l’Allemagne (5) |
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| Altmaier, Daniel | | Koepfer, Dominik | | Otte, Oscar | | Struff, Jan-Lennard | | Zverev, Alexander |
| | la Grèce (1) |
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| Tsitsipas, Stefanos |
| | l’Hongrie (1) |
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| Fucsovics, Marton |
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| l’Italie (5) |
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| Berrettini, Matteo | | Fognini, Fabio | | Musetti, Lorenzo | | Sinner, Jannik | | Sonego, Lorenzo |
| | le Japon (2) |
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| Daniel, Taro | | Nishioka, Yoshihito |
| | le Kazakhstan (2) |
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| Bublik, Alexander | | Kukushkin, Mikhail |
| | les Pays-Bas (2) |
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| Griekspoor, Tallon | | Zandschulp, Botic van de |
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| la Norvège (1) |
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| Ruud, Casper |
| | la Pologne (2) |
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| Hurkacz, Hubert | | Majchrzak, Kamil |
| | la Russie (4) |
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| Karatsev, Aslan | | Khachanov, Karen | | Medvedev, Daniil | | Rublev, Andrey |
| | la Servie (3) |
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| Djere, Laslo | | Kecmanovic, Miomir | | Lajovic, Dusan |
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| la Slovénie (1) |
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| Bedene, Aljaz |
| | l’Afrique du Sud (2) |
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| Anderson, Kevin | | Harris, Lloyd |
| | la Corée du Sud (1) |
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| Kwon, Soonwoo |
| | l’Espagne (9) |
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| Alcaraz, Carlos | | Bautista Agut, Roberto | | Carballes Baena, Roberto | | Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Martinez, Pedro | | Munar, Jaume | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
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| la Suisse (1) |
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| Laaksonen, Henri |
| | le Royaume-Uni (4) |
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| Draper, Jack | | Evans, Daniel | | Murray, Andy | | Norrie, Cameron |
| | les Etats-Unis (16) |
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| Brooksby, Jenson | | Cressy, Maxime | | Fritz, Taylor | | Giron, Marcos | | Isner, John | | Korda, Sebastian | | Krueger, Mitchell | | Kudla, Denis | | McDonald, Mackenzie | | Nakashima, Brandon | | Nava, Emilio | | Opelka, Reilly | | Paul, Tommy | | Sock, Jack | | Tiafoe, Frances | | Wolf, J.J. |
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