| Argentina (4) |
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| Baez, Sebastian | | Cachin, Pedro | | Cerundolo, Francisco | | Etcheverry, Tomas Martin |
| | Austrálie (7) |
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| De Minaur, Alex | | Kokkinakis, Thanasi | | O'Connell, Christopher | | Popyrin, Alexei | | Purcell, Max | | Thompson, Jordan | | Vukic, Aleksandar |
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| Ofner, Sebastian | | Rodionov, Jurij |
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| Seyboth Wild, Thiago |
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| Auger-Aliassime, Felix | | Raonic, Milos | | Shapovalov, Denis |
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| Jarry, Nicolas | | Tabilo, Alejandro |
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| Galan, Daniel Elahi |
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| Coric, Borna |
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| Ruusuvuori, Emil |
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| Assche, Luca Van | | Fils, Arthur | | Grenier, Hugo | | Humbert, Ugo | | Lestienne, Constant | | Mannarino, Adrian | | Monfils, Gael | | Muller, Alexandre | | Pouille, Lucas |
| | Německo (5) |
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| Altmaier, Daniel | | Hanfmann, Yannick | | Koepfer, Dominik | | Struff, Jan-Lennard | | Zverev, Alexander |
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| Klein, Lukas |
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| Hong, Seong-chan |
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| Draper, Jack | | Evans, Daniel | | Murray, Andy | | Norrie, Cameron |
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| Eubanks, Christopher | | Fritz, Taylor | | Giron, Marcos | | Korda, Sebastian | | Kovacevic, Aleksandar | | Kudla, Denis | | Kypson, Patrick | | Michelsen, Alex | | Moreno De Alboran, Nicolas | | Nakashima, Brandon | | Paul, Tommy | | Quinn, Ethan | | Shelton, Ben | | Tiafoe, Frances | | Wolf, J.J. |
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