Here, The Gazette takes a look at which players are out of contract...
1. Jak Alnwick
Loan deal from Rangers ends in the summer
2. Marc Bola
Loan deal from Middlesbrough ends in the summer
3. Yusifu Ceesay
Contract expires in the summer but club has option to extend by 12 months
4. Kiernan Dewsbury-Hall
Loan deal from Leicester City ends in the summer
5. Ben Heneghan
Loan deal from Sheffield United ends in the summer
6. Mark Howard
Contract expires in the summer