Exeter City manager Paul Tisdale believes Myles Anderson has a lot of potential after signing the defender.
The 22-year-old was released by Blackburn Rovers and Tisdale moved swiftly to secure his services.
Anderson played against the Grecians earlier this season as he spent a month on loan at Aldershot and helped the Shots keep a clean sheet on their way to a victory in a penalty shoot-out in the Johnstone's Paint Trophy in August.
Tisdale said: "We've seen Myles play and there's a lot of potential there, so we are excited about the possibility of seeing his development with us.
"We're looking at this with a view to a player that can break through into the first team. So we're excited by his potential as we've identified him as a talented and bright young individual."