| Argentina (3) |
|---|
| Del Potro, Juan Martin | | Delbonis, Federico | | Pella, Guido |
| | | Bulgaria (1) |
|---|
| Dimitrov, Grigor |
| |
| | Cyprus (1) |
|---|
| Baghdatis, Marcos |
| | France (4) |
|---|
| Gasquet, Richard | | Mahut, Nicolas | | Mannarino, Adrian | | Paire, Benoit |
| | Germany (2) |
|---|
| Mayer, Florian | | Zverev, Mischa |
|
| | | Lithuania (1) |
|---|
| Berankis, Ricardas |
| | Luxembourg (1) |
|---|
| Muller, Gilles |
|
| Netherlands (1) |
|---|
| Haase, Robin |
| | Russia (2) |
|---|
| Kuznetsov, Andrey | | Youzhny, Mikhail |
| | | Spain (3) |
|---|
| Carreno Busta, Pablo | | Granollers, Marcel | | Verdasco, Fernando |
|
| Switzerland (3) |
|---|
| Chiudinelli, Marco | | Laaksonen, Henri | | Wawrinka, Stan |
| | Ukraine (1) |
|---|
| Marchenko, Illya |
| | United States (3) |
|---|
| Fritz, Taylor | | Sock, Jack | | Young, Donald |
|