Leeds United manager Dennis Wise has confirmed Neil Sullivan will leave The Whites at the end of the season.
The experienced shot-stopper is out of contract in the summer and Wise has revealed his deal will not be renewed.
Sullivan, who joined on a free transfer from Chelsea back in 2004, had been first-choice under former manager Kevin Blackwell.
However, despite a recent run in Leeds' first-team, he is now back in his second spell with Doncaster after being allowed to leave.
"I'm not going to renew his contract and he knows that now so he's gone to Doncaster," he told the Yorkshire Evening Post.
"I wish him well and I hope that he gets a contract there."