João Sousa Singles (14) Singles (14)

| Edition | Round | Date_ | Against | Surface | Opponent | W_L | Result_ |
|---|---|---|---|---|---|---|---|
| 2010 Davis Cup Europe/Africa Group II | SF | 17–19 September 2010 | Bosnia and Herzegovina | Clay | Damir Džumhur | Loss | 6–4, 4–6, 1–6 |
| 2011 Davis Cup Europe/Africa Group I | 1R | 4–6 March 2011 | Slovakia | Clay | Martin Kližan | Win | 6–2, 4–1, ret |
| 2011 Davis Cup Europe/Africa Group I | 2R | 8–10 July 2011 | Switzerland | Hard | Marco Chiudinelli | Loss | 3–6, 4–6 |
| 2012 Davis Cup Europe/Africa Group I | 2R | 6–8 April 2012 | Israel | Hard | Andy Ram | Win | 7–5, 6–0 |
| 2012 Davis Cup Europe/Africa Group I | GI PO | 14–16 September 2012 | Slovakia | Hard | Lukas Lacko | Win | 6–4, 6–4, 6–3 |
| 2012 Davis Cup Europe/Africa Group I | GI PO | 14–16 September 2012 | Slovakia | Hard | Martin Kližan | Loss | 2–6, 5–7, 7–6 (11–9) , 1–6 |