However, the Mariners look like handing a short-tern deal to former Birmingham City, Charlton and Hull midfielder Bryan Hughes, currently a free agent.
"There's a possibility that he'll join us," Town manager Neil Wood said.
"Bryan's trained with us just mainly for him to have a look at us and us to have a look at him. The question on Bryan's ability is not even an issue for us, but he is 34 years of age and we need to see him in and around our first team squad." added Woods.
Meanwhile, Mariners' striker Charles Ademeno is expected to be out for a minimum of six weeks after undergoing knee surgery.
Source: BBC Sport