| Club | League | Years |
|---|---|---|
| Fiorentina | Serie A | 1922 |
| Spezia | Serie A | 1922–1924 |
| Juventus | Serie A | 1924–1930 |
| Inter | Serie A | 1928–1929 |
| Atalanta | Serie A | 1930–1932 |
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 József Viola an answer for?
In Who Played Both, if two of these clubs meet, József Viola is one of the right answers.
- Atalanta – Juventus 102 players
- Atalanta – Inter 86 players
- Fiorentina – Inter 83 players
- Atalanta – Fiorentina 80 players
- Fiorentina – Juventus 79 players
- Inter – Juventus 71 players
- Atalanta – Spezia 53 players
- Inter – Spezia 46 players
- Fiorentina – Spezia 43 players
- Juventus – Spezia 37 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.