| Argentina (3) |
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| Del Potro, Juan Martin | | Pella, Guido | | Schwartzman, Diego |
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| De Minaur, Alex | | Kyrgios, Nick | | Millman, John |
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| Dimitrov, Grigor |
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| Bautista Agut, Roberto | | Carreno Busta, Pablo | | Davidovich Fokina, Alejandro | | Ferrer, David | | Munar, Jaume | | Nadal, Rafael | | Ramos-Vinolas, Albert | | Verdasco, Fernando |
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| Federer, Roger | | Wawrinka, Stan |
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| Fritz, Taylor | | Johnson, Steve | | Opelka, Reilly | | Tiafoe, Frances |
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