Austria (1) |
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Thiem, Dominic |
| | Bulgaria (1) |
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Dimitrov, Grigor |
| Croazia (2) |
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Cilic, Marin | Coric, Borna |
|
Repubblica Ceca (1) |
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Berdych, Tomas |
| Francia (7) |
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Gasquet, Richard | Herbert, Pierre-Hugues | Mahut, Nicolas | Paire, Benoit | Pouille, Lucas | Simon, Gilles | Tsonga, Jo-Wilfried |
| Germania (4) |
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Kohlschreiber, Philipp | Mayer, Florian | Zverev, Alexander | Zverev, Mischa |
| Grecia (1) |
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Tsitsipas, Stefano |
|
Lussemburgo (1) |
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Muller, Gilles |
| Olanda (2) |
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Griekspoor, Tallon | Haase, Robin |
| | Russia (3) |
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Donskoy, Evgeny | Khachanov, Karen | Kuznetsov, Andrey |
|
Serbia (1) |
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Troicki, Viktor |
| Slovacchia (1) |
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Klizan, Martin |
| Slovenia (1) |
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Bedene, Aljaz |
| Spagna (3) |
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Granollers, Marcel | Lopez, Feliciano | Verdasco, Fernando |
|
Usbechistan (1) |
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Istomin, Denis |
|