Doncaster boss Sean O'Driscoll insists Brian Stock is not for sale and is in talks with his captain over a new contract.
The Wales international, who is entering the final year of his current deal at Keepmoat Stadium, has emerged as a transfer target for new Swansea manager Brendan Rodgers.
O'Driscoll confirmed that he had been in touch with his Liberty Stadium counterpart to inform him that the former Bournemouth and Preston midfielder will not be leaving the South Yorkshire side.
The Rovers manager accepts that it can be unsettling for players when they enter the final stages of their contracts, but is determined to retain Stock's services.
"I have spoken to Brendan Rodgers and told him we are not looking to sell," O'Driscoll told the Yorkshire Post.
"Brian is fully aware of the conversation and nothing further from Swansea has since appeared.
"He's in the last year of his contract - so it becomes a difficult time for players and clubs - but we are in the process of negotiating a new deal."
Defenders James Chambers and James O'Connor and midfield duo Martin Woods and James Coppinger are also in talks with O'Driscoll over new deals.
"All are in the last years of their contracts so it is important that we start a process that has an end," the manager said.
"The players would like that, too, and the process is currently ongoing."