Argentina (2) |
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Del Potro, Juan Martin | Schwartzman, Diego |
| Australien (2) |
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Kyrgios, Nick | Smith, John-Patrick |
| Ă˜strig (1) |
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Thiem, Dominic |
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Bulgarien (1) |
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Dimitrov, Grigor |
| | Kroatien (2) |
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Coric, Borna | Karlovic, Ivo |
| Tjekkiet (2) |
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Berdych, Tomas | Vesely, Jiri |
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Frankrig (5) |
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Gasquet, Richard | Mannarino, Adrian | Monfils, Gael | Paire, Benoit | Tsonga, Jo-Wilfried |
| Georgien (1) |
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Basilashvili, Nikoloz |
| Tyskland (3) |
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Marterer, Maximilian | Zverev, Alexander | Zverev, Mischa |
| Indien (1) |
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Ramanathan, Ramkumar |
|
Italien (3) |
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Fabbiano, Thomas | Fognini, Fabio | Lorenzi, Paolo |
| | Luxembourg (1) |
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Muller, Gilles |
| |
| Rusland (3) |
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Khachanov, Karen | Medvedev, Daniil | Youzhny, Mikhail |
| Serbien (2) |
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Tipsarevic, Janko | Troicki, Viktor |
| Sydafrika (1) |
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Anderson, Kevin |
|
| Spanien (7) |
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Bautista Agut, Roberto | Carreno Busta, Pablo | Ferrer, David | Lopez, Feliciano | Nadal, Rafael | Ramos-Vinolas, Albert | Verdasco, Fernando |
| Schweizisk (1) |
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Federer, Roger |
| Ukraine (1) |
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Dolgopolov, Alexandr |
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Storbritannien (1) |
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Edmund, Kyle |
| USA (13) |
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Donaldson, Jared | Eubanks, Christopher | Harrison, Christian | Harrison, Ryan | Isner, John | Johnson, Steve | Kozlov, Stefan | Krueger, Mitchell | Paul, Tommy | Querrey, Sam | Sock, Jack | Tiafoe, Frances | Young, Donald |
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