Middlesbrough FC
| Name | Age | Position | Nationality |
|---|---|---|---|
| Seny Dieng | 30 | Goalkeeper | Senegal |
| Tom Glover | 27 | Goalkeeper | Australia |
| Solomon Brynn | 24 | Goalkeeper | England |
| Shea Connor | 19 | Goalkeeper | England |
| Tom Smith | 32 | Defence | England |
| Harley Hunt | 55 | Defence | England |
| James Wilson | 55 | Defence | England |
| George McCormick | 19 | Defence | England |
| Jonny Howson | 36 | Midfield | England |
| Finley Cartwright | 17 | Midfield | England |
| Law McCabe | 18 | Midfield | England |
| Luke Woolston | 20 | Midfield | England |
| Charlie Lennon | 18 | Midfield | England |
| Nathan Simpson | 20 | Midfield | England |
| Ajay Matthews | 18 | Offence | England |
| Isaiah Jones | 25 | Right Winger | England |
| Aidan Morris | 23 | Central Midfield | USA |
| Hayden Hackney | 22 | Defensive Midfield | Scotland |
| Alex Bangura | 25 | Left-Back | Sierra Leone |
| Marcus Forss | 25 | Centre-Forward | Finland |
| Lukas Engel | 26 | Left-Back | Denmark |
| Daniel Barlaser | 28 | Defensive Midfield | England |
| Neto Borges | 28 | Left-Back | Brazil |
| Delano Burgzorg | 26 | Left Winger | Netherlands |
| Anfernee Dijksteel | 28 | Right-Back | Suriname |
| George Edmundson | 27 | Centre-Back | England |
| Matt Clarke | 28 | Centre-Back | England |
| Darragh Lenihan | 30 | Centre-Back | Ireland |
| Riley McGree | 26 | Central Midfield | Australia |
| Dael Fry | 27 | Centre-Back | England |
| Luke Ayling | 33 | Right-Back | England |
| Emmanuel Latte Lath | 26 | Centre-Forward | Ivory Coast |
| Micah Hamilton | 21 | Left Winger | England |
| Ben Doak | 19 | Right Winger | Scotland |
| Alex Gilbert | 23 | Left Winger | Ireland |
| Tommy Conway | 22 | Centre-Forward | Scotland |
| Rav van den Berg | 20 | Centre-Back | Netherlands |
| Matthew Hoppe | 23 | Centre-Forward | USA |
| Finn Azaz | 24 | Attacking Midfield | Ireland |