| Austria (1) |
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| Thiem, Dominic |
| | | Canada (1) |
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| Pospisil, Vasek |
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| Cyprus (1) |
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| Baghdatis, Marcos |
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| Berdych, Tomas | | Rosol, Lukas |
| | France (4) |
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| Chardy, Jeremy | | Gasquet, Richard | | Martin, Fabrice | | Pouille, Lucas |
| | Germany (1) |
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| Zverev, Alexander |
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| Bolelli, Simone | | Seppi, Andreas |
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| Golubev, Andrey |
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| Gulbis, Ernests |
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| Youzhny, Mikhail |
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| Djokovic, Novak |
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| Spain (4) |
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| Bautista Agut, Roberto | | Garcia-Lopez, Guillermo | | Lopez, Feliciano | | Verdasco, Fernando |
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| Federer, Roger |
| | |
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| Stakhovsky, Sergiy |
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| Istomin, Denis |
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