The 45-year-old, who retired from playing in 2001, has been a pundit for the station for the last eight years and was part of their coverage of Euro 2016.
However Collymore announced on Tuesday that a contract offer put forward earlier this year has now been withdrawn.
“After 8 extremely successful years at talkSPORT, the station has decided to withdraw its contract offer from May this year,” he wrote, before adding. “If anyone wants a highly motivated, audience growing, award winning and passionate broadcaster dedicated to engaging with football fans around the country, give me a call! Will comment further when appropriate!”
Last month, Rupert Murdoch’s News Corporation, the parent company of the Sun and Times, struck a £220m deal to buy Wireless Group, the owner of TalkSport.
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