| Argentina (3) |
|---|
| Del Potro, Juan Martin | | Delbonis, Federico | | Pella, Guido |
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| Kyrgios, Nick | | Tomic, Bernard |
| | | Bulgaria (1) |
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| Dimitrov, Grigor |
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| Pospisil, Vasek | | Raonic, Milos |
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| Li, Zhe | | Wu, Di | | Zhang, Ze |
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| Berdych, Tomas | | Rosol, Lukas |
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| Francia (7) |
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| Gasquet, Richard | | Monfils, Gael | | Paire, Benoit | | Pouille, Lucas | | Robert, Stephane | | Simon, Gilles | | Tsonga, Jo-Wilfried |
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| Anderson, Kevin |
| | Spagna (10) |
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| Almagro, Nicolas | | Bautista Agut, Roberto | | Carreno Busta, Pablo | | Ferrer, David | | Garcia-Lopez, Guillermo | | Granollers, Marcel | | Lopez, Feliciano | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
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| Edmund, Kyle | | Murray, Andy |
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| Fritz, Taylor | | Isner, John | | Johnson, Steve | | Querrey, Sam | | Sock, Jack |
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