Defender David Mulligan has left Doncaster after failing to agree new terms with the League One club.
Mulligan could not be guaranteed a regular place in Doncaster
Rovers withdrew the offer a deal to the former Barnsley player.
Manager Dave Penney told the club website: "We have spoken to Dave and his agent throughout the week and he was looking for better terms.
"We see him mainly as a utility player especially with the signings we have made, so cannot guarantee him regular first-team football."