Argentina (1) |
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Pella, Guido |
| Australia (2) |
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Ebden, Matthew | Millman, John |
| | Bosnia-Erzegovina (1) |
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Dzumhur, Damir |
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| Francia (5) |
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Gasquet, Richard | Herbert, Pierre-Hugues | Monfils, Gael | Paire, Benoit | Tsonga, Jo-Wilfried |
| Georgia (1) |
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Basilashvili, Nikoloz |
| Germania (6) |
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Gojowczyk, Peter | Kohlschreiber, Philipp | Molleker, Rudolf | Moraing, Mats | Struff, Jan-Lennard | Zverev, Alexander |
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Italia (2) |
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Berrettini, Matteo | Seppi, Andreas |
| | | Polonia (1) |
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Hurkacz, Hubert |
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Portogallo (1) |
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Sousa, Joao |
| Russia (1) |
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Khachanov, Karen |
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Djere, Laslo | Kecmanovic, Miomir |
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Bautista Agut, Roberto | Munar, Jaume |
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Svizzera (1) |
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Federer, Roger |
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Stakhovsky, Sergiy |
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Fritz, Taylor | Johnson, Steve |
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