According to the official site, Craig Mawson has left the Bulls after around 18 months.
Mawson, 27, played 50 times for the Bulls but became second choice behind Wayne Brown last season. He joined the Bulls in November 2004 after a brief spell in league football with Oldham, and is now expected to look for regular first team football with another Conference side with former club Morecambe believed to be one of the sides to have made contact.
Mawson's departure hightens speculation that Graham Turner has agreed a deal for Wayne Brown.