Town boss Paul Hurst is looking to have a 25 man squad for the forthcoming campaign, so he is looking for another four players to complete his squad.
The Mariners will be sporting the new EFL letters and numbers for the new season (pictured).
1. James MCKEOWN
2. Ben DAVIES
3. Danny ANDREW
4. Sean MCALLISTER
5. Shaun PEARSON
6. Josh GOWLING
7. Ashley CHAMBERS
8. Craig DISLEY
9. Omar BOGLE
10. Dominic VOSE
11. Rhys BROWNE
12 Zak MILLS
13. -
14 -
15. Harry CLIFTON
16. James BERRETT
17. Josh VENNEY
18. Tom BOLARINWA
19. Luke SUMMERFIELD
20. Andrew BOYCE
21 -
22 -
23. Dan JONES
24. Andy WARRINGTON
25. Max WRIGHT