| Club | League | Years |
|---|---|---|
| Newcastle United | Premier League | 1908–1913 |
| Rangers | Scottish Premiership | 1913–1919 |
| Celtic | Scottish Premiership | — |
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 Scott Duncan an answer for?
In Who Played Both, if two of these clubs meet, Scott Duncan is one of the right answers.
- Newcastle United – Rangers 30 players
- Celtic – Rangers 18 players
- Celtic – Newcastle United 16 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.
