| Club | League | Years |
|---|---|---|
| Bologna | Serie A | 1961–1967 |
| Inter | Serie A | 1967–1968 |
| Napoli | Serie A | 1968–1969 |
| Sampdoria | Serie A | 1969–1970 |
Only the clubs in the game are in the data; spells at other clubs, loans and youth years may be missing.
Which club pairs is Harald Nielsen an answer for?
In Who Played Both, if two of these clubs meet, Harald Nielsen is one of the right answers.
- Inter – Sampdoria 91 players
- Bologna – Napoli 78 players
- Bologna – Sampdoria 78 players
- Bologna – Inter 76 players
- Inter – Napoli 76 players
- Napoli – Sampdoria 69 players
Source: Wikidata (CC0), Wikipedia club articles and player infoboxes (years at each club). Youth spells and appearances that look unplayed are left out; volunteer-kept records can contain gaps or errors.
