Middlesbrough
Official Name: Middlesbrough Football Club
Formed: 1876 Ground: Riverside Stadium (34,742) Manager: Neil Warnock [ENG]
| Number | Name | Nat | Pos | Height | Weight | Date of Birth | Birth Place | Previous Club |
| 1 | Marcus Bettinelli | ENG | G | 1.94 | 82 | 24-05-92 | Camberwell | Fulham |
| 2 | Anfernee Dijksteel | NED | D | 1.83 | 72 | 27-10-96 | Amsterdam | Charlton Ath |
| 3 | Marvin Johnson | ENG | D | 1.78 | 74 | 01-12-90 | Birmingham | Oxford U |
| 4 | Grant Hall | ENG | D | 1.76 | 71 | 01-09-92 | Brighton | QPR |
| 5 | Sam Morsy | EGY | M | 1.75 | 76 | 10-09-91 | Wolverhampton | Wigan Ath |
| 6 | Dael Fry | ENG | D | 1.85 | 72 | 30-08-97 | Middlesbrough | None |
| 7 | Marcus Tavernier | ENG | M | 1.77 | 70 | 22-03-99 | Leeds | None |
| 8 | ||||||||
| 9 | Britt Assombalonga | COD | F | 1.77 | 76 | 06-12-92 | Kinshasa | Nottingham F |
| 10 | Chuba Akpom | ENG | F | 1.83 | 77 | 09-10-95 | Newham | PAOK |
| 11 | Ashley Fletcher | ENG | F | 1.85 | 78 | 02-10-95 | Keighley | West Ham U |
| 12 | Marcus Browne | ENG | F | 1.79 | 74 | 18-12-97 | Tower Hamlets | West Ham U |
| 13 | Jordan Archer | SCO | G | 1.86 | 80 | 12-04-93 | Walthamstow | Motherwell |
| 14 | Yannick Bolasie | COD | M | 1.88 | 84 | 24-05-89 | Kinshasa | Everton |
| 15 | ||||||||
| 16 | Jonathan Howson | ENG | M | 1.80 | 77 | 21-05-88 | Leeds | Norwich C |
| 17 | Paddy McNair | NIR | M | 1.83 | 72 | 27-04-95 | Ballyclare | Sunderland |
| 18 | Duncan Watmore | ENG | F | 1.75 | 72 | 08-03-94 | Cheadle Hulme | Sunderland |
| 19 | Nathaniel Mendez-Laing | ENG | F | 1.78 | 75 | 15-04-92 | Birmingham | Cardiff C |
| 20 | Darnell Fisher | ENG | D | 1.75 | 70 | 04-04-94 | Reading | Preston NE |
| 21 | Neeskens Kebano | COD | M | 1.80 | 75 | 10-03-92 | Montereau | Fulham |
| 22 | George Saville | NIR | M | 1.76 | 73 | 01-06-93 | Camberley | Millwall |
| 23 | ||||||||
| 24 | Sam Folarin | ENG | M | 1.75 | 67 | 23-09-00 | Lambeth | Tooting & Mitchan U |
| 25 | ||||||||
| 26 | ||||||||
| 27 | Marc Bola | ENG | D | 1.85 | 78 | 09-12-97 | Greenwich | Blackpool |
| 28 | ||||||||
| 29 | Djed Spence | ENG | D | 1.84 | 71 | 09-08-00 | London | Fulham |
| 30 | ||||||||
| 31 | Sol Brynn | ENG | G | 1.84 | 74 | 30-10-00 | Middlesbrough | None |
| 32 | ||||||||
| 33 | Hayden Coulson | ENG | D | 1.77 | 70 | 17-06-98 | Gateshead | None |
| 34 | Hayden Hackney | ENG | M | 1.78 | 70 | 26-06-02 | Redcar | None |
| 35 | ||||||||
| 36 | ||||||||
| 37 | ||||||||
| 38 | Isaac Fletcher | ENG | M | 1.94 | 77 | 01-06-02 | Middlesbrough | None |
| 39 | ||||||||
| 40 | Williams Kokolo | FRA | D | - | - | 09-06-00 | - | Sunderland |
| 44 | Cain Sykes | ENG | M | - | - | 14-08-02 | Sunderland | None |
| 45 | Josh Coburn | ENG | F | 1.93 | 74 | 06-12-02 | Bedale | Sunderland |
| 46 | Connor Malley | ENG | M | 1.86 | 83 | 20-03-00 | Newcastle upon Tyne | Sunderland |
| 47 | Jack Robinson | ENG | D | 1.90 | 79 | 21-06-01 | Middlesbrough | None |
Players no longer at this club |
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| Number | Name | Nat | Pos | Height | Weight | Date of Birth | Birth Place | New Club |
| 28 | Sam Stubbs | ENG | D | 1.83 | 64 | 20-11-98 | Liverpool | Fleetwood T |
| 37 | Ben Liddle | ENG | M | 1.70 | 75 | 21-09-98 | Durham | Bristol R |
| 42 | Aynsley Pears | ENG | G | 1.86 | 80 | 23-04-98 | Durham | Blackburn R |
| 32 | Dejan Stojanović | MKD | G | 1.96 | 89 | 19-07-93 | Feldkirch | St Pauli (On Loan) |
| 39 | Rumarn Burrell | ENG | F | 1.80 | 72 | 16-12-00 | Birmingham | Bradford C (On Loan) |
| 36 | Stephen Walker | ENG | F | 1.81 | 78 | 11-10-00 | Middlesbrough | Crewe Alex (On Loan) |
| 37 | Isaiah Jones | ENG | M | 1.81 | 68 | 26-06-99 | Lambeth | Queen of the South (On Loan) |
| 8 | Lewis Wing | ENG | M | 1.75 | 70 | 23-05-95 | Newton Aycliffe | Rotherham U (On Loan) |
| 15 | Nathan Wood | ENG | D | 1.88 | 72 | 31-05-02 | Middlesbrough | Crewe Alex (On Loan) |
| 19 | Patrick Roberts | ENG | M | 1.67 | 58 | 05-02-97 | Kingston-upon-Thames | Manchester C |