The list
| # | Player | Born | Middlesbrough | Watford |
|---|---|---|---|---|
| 1 | Adam Johnson | 1987 | 2004–2010 | 2007 |
| 2 | Nathaniel Chalobah | 1994 | 2014 | 2012–2013, 2017–2021 |
| 3 | Adlène Guedioura | 1985 | 2017–2018 | 2014–2015, 2015–2017 |
| 4 | Josh McEachran | 1993 | 2012–2013 | 2013–2014 |
| 5 | Danny Graham | 1985 | 2004–2007, 2014 | 2009–2011 |
| 6 | Marlon King | 1980 | 2009 | 2005, 2005–2008 |
| 7 | Paul Okon | 1972 | 2000–2002 | 2002 |
| 8 | Diego Fabbrini | 1990 | 2015–2016 | 2013–2016 |
| 9 | Andrew Taylor | 1986 | 2004–2011 | 2010–2011 |
| 10 | John Eustace | 1979 | 2003 | 2008–2013 |
| 11 | Mark Yeates | 1985 | 2009–2010 | 2011–2013 |
| 12 | Neil Cox | 1971 | 1994–1997 | 1999–2005 |
| 13 | Josh Walker | 1989 | 2006–2010 | 2010–2012 |
| 14 | Paul Wilkinson | 1964 | 1991–1996 | 1988–1991, 1995 |
| 15 | Peter Turner | 1876 | 1901–1903 | 1904–1907 |
| 16 | Arthur Horsfield | 1946 | 1963–1969 | 1975–1977 |
| 17 | Joe Davison | 1897 | 1919–1923 | 1927–1932 |
| 18 | Trevor Senior | 1961 | 1988 | 1987–1988 |
| 19 | Harry Kent | 1879 | 1908–1909 | 1909–1912 |
| 20 | Terry Garbett | 1945 | 1965–1966 | 1966–1972 |
| 21 | Tommy Dixon | 1882 | 1907–1911 | 1911–1913 |
| 22 | Trevor Putney | 1960 | 1989–1991 | 1991–1993 |
| 23 | Jack Elkes | 1894 | 1929–1933 | 1933–1934 |
| 24 | Willie Falconer | 1966 | 1991–1993 | 1988–1991 |
| 25 | Jimmy Lawton | 1942 | — | 1967–1968 |
| 26 | Alex Weir | 1916 | — | 1945–1947 |
| 27 | Tom Niblo | 1877 | 1899 | 1906–1907 |
| 28 | Bert Smith | 1890 | 1923–1925 | 1925–1927 |
Which way they moved
- Middlesbrough first, then Watford: 19
- Watford first, then Middlesbrough: 7
Test yourself
Three more club pairs: name one player for each.
Play it
In Who Played Both you and your opponent secretly pick a club each. If the clubs are Middlesbrough and Watford, the first to name one of the players above in 15 seconds wins the round.
More pairs with Middlesbrough
- Middlesbrough – Sunderland 44 players
- Cardiff City – Middlesbrough 43 players
- Middlesbrough – Sheffield United 42 players
- Middlesbrough – Newcastle United 41 players
- Leeds United – Middlesbrough 40 players
- Aston Villa – Middlesbrough 40 players
- Middlesbrough – Stoke City 36 players
- Hull City – Middlesbrough 34 players
Middlesbrough: every club it shares players with
More pairs with Watford
- QPR – Watford 70 players
- Brentford – Watford 61 players
- Tottenham Hotspur – Watford 54 players
- Sheffield United – Watford 51 players
- Reading – Watford 48 players
- Crystal Palace – Watford 46 players
- Brighton – Watford 44 players
- Watford – West Ham United 41 players
Watford: every club it shares players with
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.