Argentina (1) |
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Del Potro, Juan Martin |
| Australia (1) |
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Barty, Ashleigh |
| Austria (1) |
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Thiem, Dominic |
| Repubblica Ceca (1) |
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Siniakova, Katerina |
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| Germania (2) |
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Struff, Jan-Lennard | Zverev, Alexander |
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| Russia (1) |
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Khachanov, Karen |
| Serbia (1) |
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Djokovic, Novak |
| Spagna (1) |
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Bolsova Zadoinov, Aliona |
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Stati Uniti (3) |
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Anisimova, Amanda | Kenin, Sofia | Keys, Madison |
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