His contract with Chesterfield was due to end in June 2006. The former Charlton Athletic youngster, who joined Chesterfield permanently from the Premiership club in March 2004, was recently allowed to join Notts County on loan to help with his pursuit of first team football but that loan spell has just ended.
Spireites manager Roy McFarland said: "As Mark has limited chances at Chesterfield we were able to come to a mutual agreement to help him build his footballing career elsewhere and we wish him well."