| Argentina (4) |
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| Del Potro, Juan Martin | | Delbonis, Federico | | Monaco, Juan | | Pella, Guido |
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| Groth, Sam | | Kokkinakis, Thanasi | | Millman, John | | Thompson, Jordan |
| | |
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| Basic, Mirza | | Dzumhur, Damir |
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| Dimitrov, Grigor |
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| Pospisil, Vasek |
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| Cilic, Marin | | Coric, Borna |
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| Estrella Burgos, Victor |
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| Monfils, Gael | | Paire, Benoit | | Simon, Gilles | | Tsonga, Jo-Wilfried |
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| Basilashvili, Nikoloz |
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| Fabbiano, Thomas | | Fognini, Fabio | | Lorenzi, Paolo | | Seppi, Andreas |
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| Donskoy, Evgeny | | Gabashvili, Teymuraz | | Kuznetsov, Andrey |
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| Djokovic, Novak | | Troicki, Viktor |
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| Martin, Andrej |
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| | Usbechistan (1) |
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| Istomin, Denis |
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