Ibrahima Sonko has been released by Stoke but it is unlikely Pompey will be bringing him back to Fratton Park.
The 30-year-old joins Abdoulaye Faye and Eidur Gudjohnsen in this week being told by the FA Cup finalists their contracts will not be renewed.
Sonko’s departure is no surprise, having spent the past two seasons on loan at Hull and Pompey respectively.
While at Fratton Park he made 27 appearances, scoring one goal.
But the defender struggled to win over supporters after a poor start to his Blues career.
He subsequently failed to play the last 19 matches of Pompey’s season, not even making the bench on 14 of those occasions.
Such was the form of Greg Halford and Ricardo Rocha as a central defensive partnership, there was no coming back for Sonko.
Now he is a free agent, yet manager Steve Cotterill will have his sights fixed elsewhere for recruits.
However, the Blues boss is eager to strengthen the centre of his defence.
Gareth McAuley chose West Brom ahead of Pompey two weeks ago, while Cotterill continues to pursue a permanent deal for Halford.
The Pompey manager has already held talks over the possibility of bringing the impressive defender back to Fratton Park.
Meanwhile, he is still awaiting a decision from Hermann Hreidarsson over his future.
The Blues have offered a fresh 12-month deal to the Icelandic international, who is 37 next month.
However, he is currently assessing his options.
Hreidarsson made 29 appearances last season after recovering from a career-threatening Achilles injury.