| Austria (1) |
|---|
| Thiem, Dominic |
| | Bosnia-Herzegovina (1) |
|---|
| Dzumhur, Damir |
| | Bulgaria (1) |
|---|
| Dimitrov, Grigor |
| | Germany (1) |
|---|
| Zverev, Alexander |
|
| Serbia (5) |
|---|
| Djokovic, Novak | | Krajinovic, Filip | | Lajovic, Dusan | | Milojevic, Nikola | | Troicki, Viktor |
| | United Kingdom (2) |
|---|
| Bye 1, | | Bye 2, |
|