| Club | League | Years |
|---|---|---|
| Leeds United | Premier League | 2002–2007 |
| West Ham United | Premier League | 2003 |
| Sheffield United | Premier League | 2007–2010 |
| Sunderland | Premier League | 2010–2013 |
| Middlesbrough | Premier League | 2010 |
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 Matthew Kilgallon an answer for?
In Who Played Both, if two of these clubs meet, Matthew Kilgallon is one of the right answers.
- Leeds United – Sheffield United 63 players
- Leeds United – Sunderland 47 players
- Middlesbrough – Sunderland 44 players
- Middlesbrough – Sheffield United 42 players
- Leeds United – Middlesbrough 40 players
- Sheffield United – Sunderland 37 players
- Sunderland – West Ham United 31 players
- Sheffield United – West Ham United 25 players
- Middlesbrough – West Ham United 22 players
- Leeds United – West Ham United 18 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.
