| Argentina (1) |
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| Schwartzman, Diego |
| | Australia (2) |
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| De Minaur, Alex | | Millman, John |
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| Thiem, Dominic |
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| Dimitrov, Grigor |
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| Auger-Aliassime, Felix | | Raonic, Milos | | Shapovalov, Denis |
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| Garin, Christian |
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| Cilic, Marin | | Coric, Borna |
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| Ruusuvuori, Emil |
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