Argentina (3) |
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Londero, Juan Ignacio | Mayer, Leonardo | Pella, Guido |
| Australia (1) |
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Millman, John |
| | Francia (3) |
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Chardy, Jeremy | Herbert, Pierre-Hugues | Simon, Gilles |
|
Italia (2) |
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Cecchinato, Marco | Fabbiano, Thomas |
| Kazajstán (1) |
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Kukushkin, Mikhail |
| | Polonia (1) |
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Hurkacz, Hubert |
|
Serbia (2) |
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Djere, Laslo | Lajovic, Dusan |
| España (2) |
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Lopez, Feliciano | Verdasco, Fernando |
| Reino Unido (6) |
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Clarke, Jay | Edmund, Kyle | Evans, Daniel | Jubb, Paul | Norrie, Cameron | Ward, James |
| Estados Unidos (6) |
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Fritz, Taylor | Johnson, Steve | Kudla, Denis | Opelka, Reilly | Querrey, Sam | Sandgren, Tennys |
|