| Argentyna (6) |
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| Baez, Sebastian | | Bagnis, Facundo | | Cerundolo, Juan Manuel | | Coria, Federico | | Delbonis, Federico | | Schwartzman, Diego |
| | Australia (6) |
|---|
| De Minaur, Alex | | Kokkinakis, Thanasi | | Kyrgios, Nick | | Millman, John | | Popyrin, Alexei | | Thompson, Jordan |
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| Ivashka, Ilya |
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| Bonzi, Benjamin | | Gasquet, Richard | | Gaston, Hugo | | Humbert, Ugo | | Mannarino, Adrian | | Monfils, Gael | | Paire, Benoit | | Rinderknech, Arthur |
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| Basilashvili, Nikoloz |
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| Sousa, Joao |
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| Bedene, Aljaz |
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| Kwon, Soonwoo |
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| | Switzerland (1) |
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| Laaksonen, Henri |
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| Broady, Liam | | Evans, Daniel | | Murray, Andy | | Norrie, Cameron |
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