| Argentina (1) |
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| Mayer, Leonardo |
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| Kyrgios, Nick |
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| Pospisil, Vasek |
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| Coric, Borna | | Skugor, Franko |
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| Baghdatis, Marcos |
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| Kohlschreiber, Philipp |
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| Bolelli, Simone | | Fabbiano, Thomas | | Seppi, Andreas |
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| Sousa, Joao |
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| Chung, Hyeon |
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| Stakhovsky, Sergiy |
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| Istomin, Denis |
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