Carlisle United have released midfielders Lasse Merring-Mikkelsen and Stuart Green following trial spells.
Green's former clubs include Newcastle United, Hull City, Blackpool and Wycombe Wanderers.
Merring-Mikkelsen initially had his trial period extended but will now return to parent club Silkeborg.
Manager Greg Abbott told the club's website: "Both lads have been unlucky because we have some very good players already contracted in those positions."
He added: "We asked them to stay with us because they had a good few weeks, and we wanted to take a longer look to make sure that we made the right decision.
"The door isn't completely closed. They are players that we will continue to monitor because they have both shown us that they can play the game and they have fitted in really well with the squad."