Martin is an experienced ‘keeper who signed from Yate Town in December 2015. The former Weymouth shot-stopper has Football League experience with Torquay as well as spells with Salisbury and Dorchester in non-league. He also spent a season playing for Belgian side Royal Racing Football Club Montegnee.
Horsell quickly made the number one shirt his own during his first season at Edgar Street, making 32 appearances for The Bulls during the Midland Football League Premier title-winning campaign.
The second season saw Horsell competing for the jersey with Alex Harris, but the former Football League man still managed to get 18 appearances under his belt as The Bulls picked up the Southern League South and West title.
Last season Horsell made the number one spot his own again, making over 50 appearances for The Bulls as they secured their third league title in as many seasons.
Horsell agreed a deal to see him remain at Edgar Street for the forthcoming National League North campaign.