The Serbian international was one of Jurgen Klopp’s first signings at Westfalenstadion, arriving from FC Mainz together back in summer 2008.
He formed a crucial centre-back partnership with Mats Hummels under the now-Liverpool boss, winning two Bundesliga titles and reaching the 2013 Champions League final.
But injury problems and the prominent form of Sokratis has seen the 27-year-old slump down the pecking order since Klopp’s departure last summer, issued just eleven appearances across all competitions by his successor Thomas Tuchel.
And Subotic unexpectedly revealed on Facebook on Sunday morning that he’ll look to leave Borussia Dortmund during the summer transfer window, telling his followers: “Dear friends, during the last year I realised that my love for the game of football in an active role is too big to just be able to see it from outside.
“I am in the best age for a football player and I want to use my time to improve myself and my team every day. And I want to have the feeling I am needed and I can give everything for my club. That is what I am thinking about.
“I do not want to earn my money on the bench, but to be a active part of the history like I was until last year. I hope you can understand that. Borussia Dortmund is the club of my heart and it will always be. Yours, Neven.”
That has lead The Express to suggest the Reds could revive their interest in the 6 foot 2 defender, with veteran centre-back Martin Srktel seemingly set to leave Anfield.