Coventry have confirmed that goalkeeper Keiren Westwood has left the club after failing to agree a new contract.
The 26-year-old leaves the club a free agent, with Sunderland widely believed to be his destination after being strongly linked with his services.
Westwood moved to the Sky Blues in 2008 from Carlisle and quickly established himself as one of the finest keepers in the division.
The Republic of Ireland international was offered a new contract earlier this year but has told club boss Andy Thorn that he intends to leave.
"Kieren has written to the club confirming that he will not be signing a new deal at the club," said Thorn.
"It is nice to have some clarity on the situation and now we can move on with preparations for the new season.
"The chairman and I are working hard to bring in players including someone to fill the goalkeeping position."
In the wake of the departures of Westwood, Marlon King and club captain Lee Carsley, Thorn has announced that Sammy Clingan will take the skipper's armband for the coming season.
The Northern Ireland midfielder became stand-in captain for the final eight matches of the season, and has been confirmed in the role on a permanent basis in the coming campaign.
"He is a fantastic leader on and off the field but most of all he is a terrific footballer who loves the club," Thorn added on the club's official website.
"He leads by example and sets high standards for himself and those around him which is important as that helps everyone to improve.
"You always want a captain who others will look up to and follow - and I believe Sammy is that man.
"I told him the news over the phone the other day and he was delighted."