Millwall have cancelled the contract of long-serving centre-back Paul Robinson.
The 32-year-old has spent the last 14 years with the London outfit, making 362 first-team appearances since 2001.
However, the defender fell out of favour this season and spent the first half of the campaign on loan at League Two Portsmouth.
"I have loved every single minute of playing for Millwall and I want to thank all the fans for their support over the years," he told the club's official website.
"They have helped to give me the platform to achieve my dreams by wearing that lion on my chest. Millwall's will be the first result I look out for every weekend and I know that the club can continue to go from strength to strength.
"It is unfortunate that my time at The Den has come to an end but I wish the manager, his coaching team, the board, the players and all the fans the very best of luck for the future."
A number of Football League clubs are believed to be interested in Robinson's signature.