Steven Caulker has left Dundee by mutual consent, the club has confirmed.
The one-time England international put pen to paper on an 18-month deal at Dens Park in February, but the former QPR and Liverpool defender has activated a clause in his contract that allows him to exit the club as a free agent.
A statement from Dundee said: “Steven has triggered a release clause in his contract to leave before the end of the transfer window in search of a new challenge.
“We would like to thank Steven for his efforts whilst at the club and wish him all the best for the future.”
In April, the Dark Blues rejected a club-record bid for the defender from Norwegian side Rosenborg,
He made 15 appearances for Dundee in all competitions, scoring once.
Dundee brought in 11 players during the summer transfer window and confirmed a loan deal for Crystal Palace defender Ryan Inniss late on Friday.