| Argentinien (2) |
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| Pella, Guido | | Schwartzman, Diego |
| | Österreich (1) |
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| Haider-Maurer, Andreas |
| | Bosnien und Herzegowina (1) |
|---|
| Basic, Mirza |
| | Kroatien (1) |
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| Karlovic, Ivo |
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| Zypern (1) |
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| Baghdatis, Marcos |
| | Frankreich (1) |
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| Monfils, Gael |
| | Deutschland (11) |
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| Bachinger, Matthias | | Brown, Dustin | | Hanfmann, Yannick | | Kohlschreiber, Philipp | | Maden, Yannick | | Marterer, Maximilian | | Masur, Daniel | | Mayer, Florian | | Struff, Jan-Lennard | | Zverev, Alexander | | Zverev, Mischa |
| | Ungarn (1) |
|---|
| Fucsovics, Marton |
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| Italien (2) |
|---|
| Cecchinato, Marco | | Fognini, Fabio |
| | | Kasachstan (1) |
|---|
| Kukushkin, Mikhail |
| |
| Rumänien (1) |
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| Copil, Marius |
| | Slowakei (1) |
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| Klizan, Martin |
| | | Spanien (1) |
|---|
| Bautista Agut, Roberto |
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