Davis Cup Finals RR: USA vs ITA 2021 ATP
Round robin
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Lorenzo Sonego | m. | Reilly Opelka | 6-3 7-6(4) |
| Jannik Sinner | m. | John Isner | 6-2 6-0 |
| Pemenang | Kalah | Skor | |
|---|---|---|---|
| Lorenzo Sonego | m. | Reilly Opelka | 6-3 7-6(4) |
| Jannik Sinner | m. | John Isner | 6-2 6-0 |