Argentina (1) |
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Del Potro, Juan Martin |
| Australia (4) |
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Aiava, Destanee | De Minaur, Alex | Kokkinakis, Thanasi | Tomljanovic, Ajla |
| | Kroatia (1) |
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Lucic-Baroni, Mirjana |
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Tsjekkisk Republikk (4) |
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Berdych, Tomas | Kvitova, Petra | Pliskova, Kristyna | Safarova, Lucie |
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Petkovic, Andrea | Zverev, Mischa |
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Sonego, Lorenzo |
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Haase, Robin |
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Polen (1) |
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Radwanska, Agnieszka |
| | Russland (1) |
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Medvedev, Daniil |
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Djokovic, Novak |
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Sør-Korea (1) |
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Chung, Hyeon |
| Spania (4) |
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Bautista Agut, Roberto | Lopez, Feliciano | Ramos-Vinolas, Albert | Verdasco, Fernando |
| Amerika (6) |
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Donaldson, Jared | Keys, Madison | Querrey, Sam | Rogers, Shelby | Tiafoe, Frances | Young, Donald |
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