| Argentina (3) |
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| Delbonis, Federico | | Monaco, Juan | | Schwartzman, Diego |
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| Bolt, Alex | | Duckworth, James | | Groth, Sam | | Kokkinakis, Thanasi | | Kyrgios, Nick | | Matosevic, Marinko | | Tomic, Bernard |
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|---|
| Haider-Maurer, Andreas | | Melzer, Jurgen | | Thiem, Dominic |
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| Bellucci, Thomaz |
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| Nieminen, Jarkko |
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|---|
| Becker, Benjamin | | Berrer, Michael | | Brown, Dustin | | Kohlschreiber, Philipp | | Struff, Jan-Lennard | | Zverev, Mischa |
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| | | Uzbekistan (1) |
|---|
| Istomin, Denis |
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